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Ch 13 - Drugs Used in Heart Failure Flashcards

Basic and Clinical Pharmacology 12th ed
Opimised for Flashcard Deluxe

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1142701358What are the most common causes of high-output heart failure?- Thyrotoxicosis; - Beriberi; - Anaemia; - A-V shunt.0
1142701359How increased preload can be treated in heart failure?- Decrease of blood volume and water retention - salt restriction and diuretics; - Vasodilation - nitrates.1
1142701360How the body compensates in failing heart for decrease in cardiac output?- Increase in sympathetic drive; - Increased catecholamines; - Activation of RAAS.2
1142715786Oral availability of Digoxin is65-85%3
1142715787TRUE or FALSE. Digitsalis is widely distributed in CNS.TRUE4
1142715788TRUE or FALSE. Digitalis is extensively metabolised in the liver.FALSE. Digitalis is not extensively metabolised and almost 60% excreted by the kidneys unchanged.5
1142715789Complete the sentence. Almost ...% of Digoxin is excreted by the kidneys unchanged.66%6
1142715790What is the basis for Digoxin action?Digoxin inhibits NKA in myocytes and via NCE causes increase in intracellular Ca concentration which leads to increase in myocardial contractility.7
1142715791Complete the sentence. Digoxin causes ... of action potential in the pacemaker cells.Digoxin causes PROLONGATION of action potential in the pacemaker cells.8
1142715792Complete the sentence. At higher concentrations Digoxin ... resting potential.At higher concentrations Digoxin REDUCES resting membrane potential.9
1142733284Complete the sentence. Premature contractions in the setting of Digoxin use are the result of intracellular ... overload and oscillations in the free intracellular ... concentration.Premature contractions in the setting of Digoxin use are the result of intracellular CALCIUM overload and oscillations in the free CALCIUM concentration.10
1142733285Why the intracellular concentration of potassium is increased in Digitalis use?Due to inhibition of NKA. This results in increased intracellular Na+ and decreased intracellular K+ concentratioin.11
1142733286What is the effect of Digitalis on parasympathetic system?Digitalis - sensitises baroreceptors; - directly stimulates vagal centres; - facilitates muscarinic transmission at the cardiac myocytes.12
1142733287What explains the fact that Digitalis has less direct effect on the Purkinje system of the ventricles.Because cholinergic innervation is much richer in atria, the atriall conducting system, including AVN, is affected more.13
1142733288Complete the sentence. At toxic levels Digitalis ... sympathetic outflow. (increases/decreases/has little effect)At toxic levels Digitalis INCREASES sympathetic outflow.14
1142733289What are the common rhythms reflecting Digitalis toxicity?- AV junctional rhythm; - PVC; - Bigemeny; - 2nd degree AV block.15
1142733290What is the mechanism of bigemeny in Digitalis toxicity?Digitalis leads to increased intracellular Ca++ concentration. This results in fluctuations of Ca++ concentration after depolarisation which with may lead to afterdepolarisation oscillations (which is coupled to normal depolarisation). When these oscillations are SUSTAINED, BIGEMENY develops.16
1142802512Which two systems are most commonly affected by Digittalis adverse reactions?- Cardiovascular; - GIT.17
1142802513What are the common GIT adrverse reactions in Digitalis use?- Anorexia; - N/V/D.18
1142802514What are common CNS adverse reactions in Digitalis use?- Disorientations; - Hallucinations; - Colour vision disturbances (esp in elderly)19
1142802515Complete the sentence. Digoxin causes ... firing rate of SAN.Digoxin causes DECREASED firing rate of SAN.20
1142802516Complete the sentence. Digoxin ... refractory period of the atrial muscle.Digoxin DECREASES refractory period of the atrial muscle.21
1142802517Complete the sentence. Digoxin ... conduction though AVN and ... its refractory period.Digoxin SLOWS conduction though AVN and INCREASES its refractory period.22
1142804438What is the interaction between K+ and Digitalis?Digitalis and K+ compete for binding to the enzyme (ATP). Therefore moderate extracellular Hyper-K reduces effects of Digitalis especially in Digitalis toxicity.23
1142804439Complete the sentence. Hypokalemia in the setting of Digitalis use ... to toxic effectds of Digitalis.Hypokalemia in the setting of Digitalis use PREDISPOSES to toxic effectds of Digitalis.24

Biology Midterm Flashcards

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3249018849What is biology?the study of life0
3249018850What is an organism?anything that has one or more of the characteristics of life1
3249018851what is asexual reproduction?production of offspring in which the organism inherits all of their chromosomes from a single parent and therefore is identical to that parent.2
3249018852what is sexual reproduction?production of offspring in which the organism inherits chromosomes from two parents.3
3249018853What are the characteristics of life?1) made of 1 or more cells 2) displays organization 3) grows and develops 4) reproduces 5) responds to stimuli 6) requires energy 7) maintains homeostasis 8) adaptions evolve over time4
3249018854What is growth?process which results in mass being added to an organism5
3249018855What does multicellular mean?an organism that has more than one cell6
3249018856what does unicellular mean?an organism that only has one cell7
3249018857What is development?changes an organism undergoes in its lifetime before reaching an adult form8
3249018858what is stimulus?Any change in an organism's internal or external environment that causes the organism to react9
3249018859What is homeostasis?regulation of an organism's internal environment to maintain conditions needed for life10
3249018860What is energy?the ability to do work; cannot be created or destroyed, only transformed11
3249018861What is organization?an orderly structure shown by living things?12
3249018862What is an autotroph?an organism that captures sunlight or inorganic substances to produce its own food; also known as a producer13
3249018863What is a heterotroph?an organism that cannot make its own food and gets its nutrients and energy requirements by feeding on other organisms; also known as a consumer14
3249018864What is adaption?inherited characteristic of a species that develops over time in response to an environmental factor, enabling the species to survive15
3249018865what is evolution?hereditary changes in groups of living organisms over time16
3249018866What are the steps of the scientific method or process?-observe -form a hypothesis -experiment - gather and analyze data -draw a conclusion17
3249018867What is a hypothesis?testable explanation of a process18
3249018868What is an experiment?procedure performed by a controlled setting to test a hypothesis and collect precise data19
3249018869What is something that is known as the "control"?it is the part in an experiment not receiving the testing factor20
3249018870What is an experimental variable?the part in an experiment receiving the testing factor21
3249018871What is an independent variable?The variable that can be changed in a controlled experiment; the tested factor and affects the outcome22
3249018872What is a dependent variable?factor being measured in the experiment; changes because of the changes in the independent variable23
3249018873What is data?qualitative or quantitive information gained from scientific investigation24
3249018874What is a theory?explanation of natural phenomenon based on many observations and investigation over time25
3249018875What is quantitive data?data collected as numbers26
3249018876What is qualitative data?descriptions of what our senses detect27
3249018877What is matter?anything that takes up space and has mass28
3249018878What is an element?a substance that cannot be broken down into other physical substances by physical or chemical means29
3249018879What is an ion?atom that is negatively or positively charged because it has lost or gained one or more electrons30
3249018880What are isotopes?two or more of the same elements having different numbers of neutrons31
3249018881what is an ionic bond?electrical attraction between two oppositely charged atoms or groups of atoms32
3249018882what is a covalent bond?type of chemical bond when atoms share electrons33
3249018883What is a peptide bond?a bond that joins amino acids and proteins34
3249018884what are acids?substances that release hydrogen ions when dissolved in water; an acidic solution has a pH greater than 735
3249018885What are bases?substances that release hydroxide ions when dissolved in water; a basic solution has a pH greater than 736
3249018886What is thee pH scale used for?to indicate the relative strength of acids and bases37
3249018887What are the characteristics of water?-good solvent -temperature change -cohesion -dissolver -hydrogen bonds38
3249018888What is polarity?water molecules joining dissolving; molecules with oppositely charged regions39
3249018889what is a hydrogen bond?weak electrostatic bond formed by the attraction of opposite charges between a hydrogen atom and an oxygen, fluorine or nitrogen atom40
3249018890What is diffusion?net movement of particles from an area of higher concentration to an area of lower concentration41
3249018891What is osmosis?diffusion of water across a selectively permeable membrane42
3249018892what are polymers?large molecules formed from smaller repeating units of identical, or nearly identical, compounds linked by covalent bonds43
3249018893What are monomers?the compounds that link together to form polymers44
3249018894What are the main substances essential for life?-carbon -Hydrogen -oxygen -nitrogen45
3249018895What are carbohydrates?organic compounds containing carbon, hydrogen, and oxygen in ratio of one oxygen and two hydrogen atoms for each carbon atom46
3249018896What are proteins?organic compounds made of amino acids joined by peptide bonds; primary building block of organisms47
3249018897What are enzymes?protein that speeds up a biological reaction by lowering the activation energy needed to start the reaction48
3249018898What are the three parts of the cell theory?1) organisms are made of one or more cells 2) cells are the basic unit of life 3) all cells come only from other cells49
3249018899what are prokaryotic cells?cells without a nucleus or other membrane bound organelles50
3249018900What are eukaryotic cells?cells with membrane bound nuclei and organelles; generally larger and more complex than prokaryotic cells51
3249018901What is the cell wall?in plants, the barrier that surrounds the plasma membrane, is made of cellulose and provides support and protection to the cell52
3249018902What is the nucleus?large organelle containing mist of the cell's DNA53
3249018903What is the cytoplasm?watery solution containing dissolved materials, enzymes and cell organelles54
3249018904What is the mitochondria?"power house" which is responsible for converting chemical energy from food into cell energy55
3249018905What are the ribosomes?manufacture proteins56
3249018906What is the endoplasmic reticulum?rough-modifies and transports proteins smooth- store enzymes57
3249018907what is the Golgi apparatus?process and package proteins58
3249018908What are lysosomes?full of digestive enzymes to break down cell parts59
3249018909What are vacuoles?where cells store salt and water60
3249018910What is the cytoskeleton?gives the cell framework61
3249018911What are chloroplasts?site of photosynthesis-where energy from sun is trapped and converted into glucose62
3249018912What is a concentration gradient?particles that are unevenly distributed63
3249018913What is equilibrium?continuous random movement of particles but no overall change in concentration of materials64
3249018914What is active transport?energy requiring process by which substances move across the plasma membrane against a concentration gradient; moving from low to high concentration65
3249018915What is passive transport?moving from high to low concentration66
3249018916What is facilitated diffusion?passive transport of ions and small molecules across the plasma membrane by transport proteins67
3249018917What is a soluton?homogeneous mixture formed when a substance is dissolved in another substance68
3249018918what is a solute?substance in which another substance is dissolved69
3249018919what happens in an isotonic solution?concentration of solute is equal inside and outside of the cell70
3249018920What happens in an hypertonic solution?concentration of solute is higher outside of the cell than inside; cell will "shrivel up"71
3249018921What happens in a hypotonic solution?concentration of solution is higher inside of the cell than outsider; cell will expand72
3249018922What is selective permeability?property of the plasma membrane that allows it to control movement of substances into or out of the cell73
3249018923What is endocytosis?when substances from the outside enter the cell; energy requiring74
3249018924what is exocytosis?when substances from the plasma membrane are expelled from the cell; energy requiring75
3249018925What are the three parts of the cell cycle?1) interphase 2) mitosis 3) cytokinesis76
3249018926What is the purpose of the cell cycle?to reproduce cells77

Biology Review Flashcards

This a a review of key Life (Biology) Science terms and ideas to help prepare for the Nevada High School Science Proficiency Exam.

Terms : Hide Images
502656060Taxonomy Order (Biggest to Smallest)Kingdom, Phylum, Class, Order, Family, Genus, Species0
502656061Cell Wallstrong layer around the cell membrane in plants, algae, and some bacteria1
502656062Nucleusa part of the cell containing DNA and RNA and responsible for growth and reproduction2
502656063Ribosomesmall particle in the cell on which proteins are assembled; made of RNA and protein; where amino acids are made into proteins3
502656064MitochondriaPowerhouse of the cell, produces energy (ATP) from oxygen and sugar(Cellular respiration); respiration takes place here4
502656065Endoplasmic Reticuluma system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids; folded transport system for the cell5
502656066Normal Cell Division1. DNA (chromosomes) unwinds and is duplicated 2. Chromosomes line up in the center of the cell 3. Centromeres separate 4. Single stranded chromosomes move to opposite ends of the cell 5. A nuclear membrane forms around each set of new chromosomes6
502656067Plant cellsContain chloroplasts (photosynthesis sites) and vacuoles (water storage areas) that are not found in animal cells7
502656068PhotosynthesisPlant cells turn sunlight, carbon dioxide and water into carbohydrates8
502656069RespirationAnimal cells turn carbohydrates, water and oxygen into energy. Waste product is carbon dioxide.9
502656070MitosisOne cell makes two cells exactly like the first cell; process by which the nucleus and duplicated chromosomes of a cell divide and are evenly distributed, forming two daughter nuclei10
502656071Diploidcell with two of each kind of chromosome; is said to contain a diploid, or 2n, number of chromosomes; 2n-where n is the number of chromosomes11
502656072Meiosis(genetics) cell division that produces reproductive cells in sexually reproducing organisms; One cell makes two gamete cells 2n -> n12
502656073Haploid(genetics) an organism or cell having only one complete set of chromosomes; n - where n is the number of chromosomes13
502656074DNAdeoxyribonucleic acid, the material that contains the information that determines inherited characteristics; Base pair matching is: Adenine bonds ONLY with Thymine, Thymine bonds ONLY with Adenine, Cytosine bond ONLY with Guanine Guanine bond ONLY with Cytosine14
502656075DNA ReplicationThe DNA double helix strand separates and becomes a template for a new and identical strand. As the strand separates each A pairs with a T and T pairs with an A while each C pairs with a G and each G pairs with a C. If the original was ACTCAG then the new strand would be TGAGTC.15
502656076Chargaff's Ruleequal amounts of adenine bonds with thymine and equal amount of guanine bonds with cytosine16
502656077RNA(biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes In RNA, A pairs with U and C pairs with G. At this point the base Uracil is put in place of Thymine (so A now bonds only with U).17
502656078Ribosomal RNA (rRNA)aids in protein formation.18
502656079Transfer RNA (tRNA)reads the sequence of mRNA and structs the ribosome to assemble new proteins from amino acids that match. tRNA moves the amino acids and proteins around into the right places.19
502656080DNA vs RNADNA, sugar is deoxyribose, two strands, base - thymine RNA, sugar is ribose, one strand, base - uracil, only molecule to enter or leave the nucleus20
502656081Genotype vs PhenotypeGenotype is the genetic makeup; what can be passed on to your children Phenotype is the physical appearance; what is seen in you right now; how you look21
502656082HomozygousBoth alleles are the same (TT) for homozygous dominant or (tt) for homozygous recessive (I used the letter T for an example only. This could be any letter)22
502656083HeterozygousAlleles are different (Tt)23
502656084Allelesdifferent forms of a gene24
502656085Chromosomesthreadlike structures made of DNA molecules that contain the genes25
502656086Genessequence of DNA that codes for a protein and thus determines a trait26
502656087Dominancean organism with a dominant allele for a particular form of a trait will always exhibit that form of the trait. (ex. Bb ---The big B would be dominant; Allele which masks the presence of a recessive Ex: AA or Aa27
502656088Recessiveof genes; Two recessive alleles in order for genotype to be expressed. Ex: aa28
502656089Punnett Squares29
502656090Punnett Squares 230
502656091Order of Organism ComplexityCell, tissue, organ, organ system, organism31
502656092EvolutionIs change in organisms over time32
502656093Natural SelectionProcess by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest33
502656094Survival of the Fittestprocess by which individuals that are better suited to their environment survive and reproduce most successfully; also called natural selection; One who has most surviving off spring most fit.34
502656095PathogensCause infectious diseases35
502656096ParasitesLive off of a host and will eventually cause the death of the host36
502656097Primary producersAre plants and they provide most of the food and oxygen; the first producers of energy-rich compounds that are later used by other organisms37
502656098Linnaeusscientist who came up with method of naming organisms with a 2 part scientific name called binomial nomenclature38
502656099Darwin's Theory of Natural Selection1. More offspring are born into a population that can survive. 2. These offspring all contain variations 3. These offspring must compete for natural resources 4. The organisms with the best variations will survive and reproduce. (Survival of the fittest) 5. Over time, descent (the ancestors will be different from offspring) with modification will occur.39
502656100Mutationschange in a DNA sequence that affects genetic information; can passed on to offspring if they occur in the gametes40
502656101Gametesreproductive cells, have only half the number of chromosomes as body cells; in humans, the egg or sperm41
502656102Stomaticany body cell expect for sex cells42
502656103BiodiversityResults in stability in an ecosystem. Biodiversity is a measure of the number and types of organisms that live in an ecosystem43
502656104Succession(ecology) the gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established44
502656105PhotosynthesisHow most food and oxygen on earth are produced; the energy comes from the sun45
502656106Homologous structuresAre structures that derive from the same body part but may have different forms, i.e. bird wing, bat wing, human arm46

Biology Semester Test 2 Flashcards

Based off Caitlin's ProProfs set.

Terms : Hide Images
2588797275What do we know about the relationship between genes and DNA?DNA is the nucleic acid that stores and transmits the genetic information from one generation to the next0
2588797276What is the structure of a DNA molecule?double helix1
2588797277Who discovered the structure of DNA?Watson and Crick2
2588797278Griffith's experiments showed what results?Shows that transformation-process in which one strain of bacteria changes into another, can occur3
2588797279In what ways is RNA different from DNA?1. The sugar in RNA is ribose, not deoxyribose 2. RNA is generally single-stranded 3. Replaces thymine with uracil4
2588797280What happens in DNA replication?the original DNA unwinds to serve as a template, so they can make copies5
2588797281Compare and contrast DNA is prokaryotes and eukaryotes.prokaryotes: in cytoplasm, only 1 replication bubble; eukaryotes: in nucleus6
2588797282Why is protein synthesis such a vital process in living things?it forms structural compunds and multiple necessary enzymes7
2588797283How does protein synthesis occur?1. transcription 2. translation 3. polypeptide chain8
2588797285What is a mutation? What may be the effects of a mutation?mutation: change in genetic material; if a mutation affects even just one small protein, it can offset the entire chain of base pairs9
2588797286Why is classification a valuable process?to study the diversity of life10
2588797287taxonomyclassifying organisms and assigning a universally accepted name to each organism11
2588797288binomial nomenclatureeach species assigned a 2 part name12
2588797289Who was Linnaeus? Describe the system of classification he designed.man who brought order by classification, 7 categories13
2588797290What are the seven taxonomic categores in the Linnean system?species, genus, family, order, class, phylum, kingdom14
2588797291How are evolutionary relationships important today in classification?organisms now grouped into categories that represent lines of evolutionary descent15
2588797292Describe phylogeny and cladogramsPhylogeny- evolutionary relationships among organisms Cladograms- digram that shows evolutionary history16
2588797293Name the six modern kingdoms of lifeEubacteria, Arcahebacteria, Protista, Fungi, Plantae, Animalia17
2588797294What are the three current domains of life?Bacteria, Archaea, Eukarya18
2588797295Describe how dichotomy works.dichotomous key: tool used to identify an organism, a series of paired statements that describe physical characteristics19
2588797296In what ways do pathogens make us sick?They enter your body then quickly multiply20
2588797297How can we prevent or control the spread of pathogens?wash hands, vaccinations, sanitize things21
2588797298What are bacteria? How are they helpful? Harmful?Bacteria- microorganism that may cause disease. They help fight off invading pathogens. They can poison the host by releasing toxins.22
2588797299What is a virus? Are they helpful, harmful,both? What is the structure of a virus?virus- particles of nuclueic acid, proteins, and lipids. Both, mostly harmful. A core of DNA or RNA.23
2588797300Compare lytic and lysogenic infections.Lytic- enter cell, makes copies, bursts cell Lyso- integrates with host DNA then replicate24
2588797301bacteriophagevirus that infects bacteria25
2588797302prionsno DNA or RNA just protein26
2588797303viroidssingle strand RNA molecule with no surrounding capsid27
2588797304retrovirusvirus that contains RNA as their genetic information28
2588797305What is a plant?multicellular eukaryotes that have cell walls made of cellulose, carry out photosynthesis29
2588797306What do plants need to survive?sunlight, water, minerals, gas exchange, and movement of water and minerals throughout the plant30
2588797307What type of plants are bryophytes?Nonvascular/ mosses, liverworts, and hornworts31
2588797308What are the two types of vascular tissue in plants?xylem, phloem32
2588797309Identify the main characteristics of seed plantshave seed, can live anywhere, protect embryo in seed, can reproduce without water33
2588797310Decribe differences between angiosperm and gymnospermsAngiosperm- seeds in flowers/ fruit Gymnosperm- seeds on cones34
2588797311annualcomplete life cyle within one year35
2588797312biennial1st year it grows roots, 2nd year it grows leaves, flowers, stems, and seeds36
2588797313perenniallive more than 2 years37
2588797314monocotone seed leaf38
2588797315dicot2 seed leaves39
2588797316All chordate share which characteristics?dorsal hollow nerve chord, notochord, pharyngeal pouches, and a tail beyond the anus40
2588797317Which characteristics distinguishes vertebrates from other chordates?their backbones41
2588797318What are basic fish characteristics?Aquatic vertebrae- paired fins, scales, and gills42
2588797319Which characteristics were important in the evolutionary development of fishes?jaws and paired fins43
2588797320What adaptations make fishes suited for life in the water?various modes of feeding, specialized structures for gas exchange, and paired fins44
2588797321How are amphibians adapted for life on land?bones, stronger limb girdles, lungs and breathing tubes, and a strong sternum45
2588797322lateral linecan detect gentle currents and vibrations in water46
2588797323oviparousdevelop and hatch outside of mother's body47
2588797324viviparousembryo in mother after fertilization48
2588797325ovoviviparouseggs in mother after fertilization49
2588797326atrium and ventricleatrium: recieves and hold blood; ventricle: pumps blood out to body50
2588797327cerebrum, cerebellum, medulla oblangatacerebrum: voluntary activities of the body; cerebellum: coordinates the body movement; medulla obtantata: controls internal organs51
2588797328What are characteristics of mammals?hair, nourish young with milk, 4-chambered hearts, generate internal body heat52
2588797329How do mammals maintain homeostasis?Kidneys filter urea from blood, excrete or retain water53
2588797330Compare and contrast the three major groups of mammals.monotreme- lay eggs marsupials- bear live young but early development placentals - have placenta54
2588797331What characteristics do all primates share?binocular vision, well developed cerebrum, long fingers and toes, arms that rotate in shoulder joint55
2588797333binocular visionability to merge visual images from both eyes, creating depth perception, and a 3D view56
2588797334opposable thumbsenables grasping and using tools57
2588797335bipedal2 foot locomotion58
2588797336prehensiletail that can coil around a branch59
2588797337placentainternal structure made of embryo and mother's tissue combined60
2588797338What produces behavior in animals?when an animal responds to a stimulus, body systems respond61
2588797339innate and learned behaviorinnate: instinct, inborn behavior; learned: animals alter behavior from past experience62
2588797343What are the major types of learning?1. Habituation- stop responding to a stimulus because it neither rewards nor harms 2. Classical conditioning - learning by practice 3. Operant conditioning - learn by trial and error63
2588797344What is the difference between a stimulus and a response?stimulus triggers a response64
2588797345What is the difference between internal and external stimuli?Internal- inside the body External-outside the body65
2588797346How do enviromental changes affect animal behavior?animals respond to periodic changes in the enviroment with daily or seasonal cycles of behavior66
2588797347Which behaviors commonly result from enviromental changes?migration, hibernation, and dormancy67
2588797348What are the ways in which animals communicate?visual, touch, sound, or chemical signals68
2588797349circadian rhythmBehavior cycle that occurs in daily patterns69
2588797350imprintingyoung animals learn to recognize and follow the first moving object they see70
2588797351What are pheromones?chemical messengers71
2588797352What are characterisitcs of reptiles?vertebrate with scaly skin, lungs, and eggs with membranes72
2588797353What specializations do reptiles have in body systems?well developed lungs and a 2 loop circulatory system73
2588797354What adaptations do they have for their type of life and habitat?strong limbs, internal fertilization, and shelled terestrial eggs74
2588797355What are the distinguishing characteristics of birds?feathers, 2 scaly legs, and front limbs modified to wings75
2588797356What specializations and adaptations do birds exhibit?efficent digestive, respiratory, and circulatory systems / aerodynamic feathers and wings / lightweight skeletal system76
2588797357amnion membranecushions the developing embryo77
2588797358allantois membranestores embryo wastes78
2588797359chorion membraneregulates gas exchange79
2588797360yolk sacknutrient supply for embryo80
2588797361What does it mean if an animal is an ectotherm or an endotherm?ectotherm: depends on environment to maintain body temperature; endotherm: can regulate its own body temperature81

Biology Final Exam Flashcards

Notecards based off of Mrs. Kerr's Biology final exam study guide

Terms : Hide Images
14621359263 Components of a DNA Nucleotide1: a phosphate group 2: deoxyribose, 5-carbon sugar 3: nitrogenous base0
1462135927Type of Sugar in DNA5 carbon sugar (deoxyribose)1
1462135928PurinesAdenine & Guanine are _____, have two rings2
1462135929PyrimidinesThymine & Cytosine are _____, have only one ring3
1462135930ThymineAdenine always bonds with _____ (part of Chargaff's Rules); Pyrimidine4
1462135931CytosineGuanine always bonds with _____ (part of Chargaff's Rules); Pyrimidine5
1462135932GuanineCytosine always bonds with _____ (part of Chargaff's Rules); Purine6
1462135933AdenineThymine always bonds with ______ (part of Cargaff's Rules): Purine7
1462135934Chargaff's Rule% Adenine = % Thymine; % Guanine = % Cytosine; also known as BASE PAIRING8
1462135935FranklinPictures taken with X-Ray diffraction to get information about the structure of the DNA molecule9
1462135936Watson and Crickwere shown Franklin's bicture and eventually made the breakthrough with the DNA model in a double helix10
1462135937Steps leading to the development of the double-helix model of DNA1: Franklin's X-ray diffraction 2: Chargaff's rule of Base Pairing 3: How the two strands of DNA are held together (hydrogen bonds) 4: DNA's role as a carrier of genetic information11
14621359385' side of DNA strandSide with the phosphate group sticking out12
14621359393' side of DNA strandSide that does not have the phosphate group sticking out13
1462135940Base PairingChargaff's rule, Adenine bonds to Thymine, Guanine bonds to Cytosine14
1462135941NucleotideMonomer of the polymer Nucleic Acid, consisting of a 1: 5 carbon sugar, 2: phosphate group, 3: nitrogenous base15
1462135942Role of helicase in DNA replication"unzips" the DNA molecule by breaking hydrogen bonds between base pairs and unwinding the 2 strands16
1462135943Role of polymerase in DNA replicationJoins individual nucleotides to original strand and proofreads each new DNA strand17
1462135944Summarize the events of DNA replicationDNA is unzipped, new base pairs are added, there are added in a 3' to 5' direction, at multiple points all over the DNA molecule18
1462135945ReplicationDNA is replicated with DNA polymerase and DNA19
1462135946EnzymeA type of protein that speeds up a chemical reaction in a living thing20
1462135947DNA polymeraseprinciple enzyme in DNA replication, produces sugar-phosphate bonds to join nucleotides, "proofreads" new DNA strand, Enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule21
1462135948TelomereDNA at the tips of chromosomes22
1462155199Contrasts of DNA and RNADNA: contains thymine, doesn't leave nucleus, generally double stranded, sugar is deoxyribose, provides information for RNA RNA: contains uracil, leaves the nucleus, generally single stranded, sugar is ribose, provides information to proteins23
1462155200Process of transcriptionSEGMENTS of DNA serve as a template to make RNA, started by a promoter24
1462155201RNARibo-nucleic acid, codes for proteins, made through transcriptions25
1462155202Messenger RNACarries copies of instructions for assembling amino acids into proteins, carry informations from DNA to other parts of the cell; mRNA26
1462155203ribosomal RNARibosome partially made up of a segment of RNA, rRNA27
1462155204transfer RNAWhen a protein is built the tRNA molecule transfers the correct amino acid to the ribosome28
1462155205transcriptionThe organic process whereby the DNA sequence in a gene is copied into mRNA29
1462155206RNA polymeraseEnzyme similar to DNA polymerase that binds to DNA and separates the DNA strands during transcription30
1462155207Promoterregion of DNA with a specific base sequence, signals where transcription starts31
1462155208Process of translationRNA polymerase, binds to DNA to separate DNA strands, one strand of DNA is a template and assembles nucleotides into complementary strands of DNA32
1462155209Role of tRNA in translationtRNA molecules deliver exactly the right amino acid called for by each codon on the mRNA; anti-codons33
1462155210Role of mRNA in translationmRNAs are converted into protein through translation. The codons of an mRNA are "read" sequentially; and, in response to each codon, the appropriate amino acid is assembled into a growing chain34
1462155211"Central dogma" of molecular biologythe rule that information is transferred from DNA to RNA to protein35
1462155212PolypeptideA polymer (chain) of many amino acids linked together by peptide bonds.36
1462155213CodonA specific sequence of three adjacent bases on a strand of DNA or RNA that provides genetic code information for a particular amino acid37
1462155214TranslationmRNA is translated into protein through anti-codons, tRNA, in sequences of three for a single amino-acid38
1462155215AnticodonA sequence of three bases of a tRNA molecule that pairs with the complementary three-nucleotide codon of an mRNA molecule during protein synthesis.39
1462155216Types of point mutationssubstitution40
1462155217Types of frameshift mutationsinsertion and deletion41
1462155218Substitutiona nucleotide is replaced in a sequence42
1462155219Insertiona nucleotide is added to a sequence43
1462155220Deletiona nucleotide is removed from a sequence44
1462155221Types of gene mutationspoint mutations (substitution) and frameshift mutations (insertion and deletion); Sickle Cell Anemia, Cystic Fibrosis45
1462155222Types of chromosomal mutationsEntire chromosome (nondisjunction, ex: Down Syndrome, Turner's Syndrome, Klinefelter's Syndrome)46
1462155223NondisjunctionError in meiosis in which homologous chromosomes fail to separate.47
1462155224Describe the causes of mutationsMutagens, stressful environmental situations, natural and artificial events, errors in genetics48
1462155225Describe the effects mutations can have on organismsCan result in mutations, such as nondisjunction, gene mutations, and chromosomal mutations49
1462155226Mutationany event that changes genetic structure50
1462155227Point mutationGene mutation involving changes in one gene, ex substitution51
1462155228Frameshift mutationMutation that shifts the "reading" frame of the genetic message by inserting or deleting a nucleotide52
1462155229MutagenA change in the number or structure of chromosomes53
1462155230PolyploidyA condition in which an organism has an extra set of chromosomes54
1462155231Purpose of a karyotype?(chromosomes map) Is used for cytogenetic analysis of chromosomes. (see any chromosomal mutations/ problems)55
1462155232Karyotypesimages of an individuals 46 chromosomes lined up in homologous pairs56
1462155233Sex chromosomeChromosomes that determine the sex of an individual, 23rd pair generally57
1462155234AutosomeAny chromosome that is not a sex chromosome58
1462155235Purpose and procedure for: DNA extractionkaryotyping and other observation of DNA 1: break open cells (ex: smashing strawberries) 2: dissolve cell and nuclear membranes (ex: add lysis to mashed strawberries) 3: break down protein (add protease) 4: Separate components of the cell (ex: filter through cheesecloth) 5: Precipitate DNA from solution (adding ethanol to filtered extract)59
1462155236Purpose and procedure for: selective breeding (including hybridization and inbreeding)used by humans to take advantage of naturally occurring genetic variation to pass wanted traits onto the next generation of organisms, ex through hybridization to cross desired traits or inbreeding to retain desired traits60
1462155237HybridizationBreeding technique that involves crossing dissimilar individuals to bring together the best traits of both organisms61
1462155238InbreedingContinued breeding of individuals with similar characteristics to maintain the desired characteristics of a line of organisms62
1462155239Purpose and procedure for: restriction enzymesused for recombiant DNA -> gene therapy & gel electrophoresis and DNA fingerprinting, restriction enzyme is added (ex: DNA ligase)63
1462155240Purpose and procedure for: gel electrophoresisOften in crime suspects and comparing DNA; 1: cut DNA sample with restriction enzyme 2: load DNA into wells using micropipete 3: hook gel up to electricity 4: DNA is negative, so DNA moves to positive end 5: smaller DNA fragments move faster and further64
1462155241Purpose and procedure for: DNA fingerprintinguses gel electrophoresis with restriction enzyme; The separation of nucleic acids or proteins, on the basis of their size and electrical charge, by measuring their rate of movement through an electrical field in a gel. (DNA is negatively charged and the smallest ones move the furthest to the positive end while the largest pieces remain closest to the negative end) 1: uses section of DNA that varies widely from person to person 2: run gel electrophoresis to look for matches65
1462155242Purpose and procedure for: recombiant DNA (including transgenic organisms, genetic modified organisms (GMOs), and gene therapy)DNA patched together from different organisms to produce a certain trait; uses restriction enzymes to add specific traits to the DNA of another organism66
1462155243Transgenic organismsorganism that contains genes from other organisms often using restriction enzymes67
1462155244Genetic modified organisms (GMOs)organism whose genetic code has been altered by artificial means such as interspecies gene transfer; genetic engineering68
1462155245Gene therapyThe insertion of working copies of a gene into the cells of a person with a genetic disorder in an attempt to correct the disorder69
1462155246Purpose and procedure for: cloning1: an egg cell is taken from an adult female sheep and a donor cell is taken from another 2: the two cells (donor nucleus & egg cell) are fused using an electric shock 3: The fused cell begins dividing normally 4: The embryo is placed in the uterus of a foster mother 5: the embryo develops into a fully grown sheep Purpose: to create a genetically identical organism70
1462155247Purpose and procedure for: polymerase chain reactionto make many copies of DNA 1: add DNA, primers, nucleotides, and DNA polymerase to thermocycler 2: Heat DNA up -> separates strands 3: Cool down, DNA want to pair (hydrogen bond) but primers crowd it and bind to the DNA 4: DNA polymerase adds nucleotides 5: cycle repeats71
1462155248Structure of a VirusAll viruses have 2 basic parts: a protein coat that protects the virus and an inner core(where there is Genetic Material). The proteins on a virus are what allows them to get inside the cell after matching with the membrane proteins on the cells membrane envelope.72
1462155249How do viruses cause infection (lysogenic and lytic infection)They infect the host cell with their genetic information, prophage, which either immediately recreate in the cell and make it burst from copies of itself (lytic) or may replicate for many generations within the cell and later turn to a lytic infection (lysogenic)73
1462155250Compare and contrast a virus and a cellVirus: smaller, non-living, DNA or RNA, electron microscope, require host cell to reproduce, DNA or RNA in capsid, likely evolved first, parasites Cell: bigger, living, can be seen using a compound light microscope, can grow and develop, can independently obtain and use energy, can reproduce independently, cytoplasm, DNA, organelles Both: can respond to environmental stimuli, cell membrane74
1462155251PathogenA disease causing agent75
1462155252VirusA NON-LIVING particle made of nucleic acid, proteins, and sometimes lipids76
1462155253CapsidOuter protein coat of a virus77
1462155254BacteriophageA virus that infects bacteria78
1462155255Lytic infectionProcess in which a virus enters a cell, makes a copy of itself, and causes the cell to burst79
1462155256Lysogenic infectionprocess by which a virus embeds its DNA into the DNA of the host cell and is replicated along with the host cell's DNA, eventually changes to a lytic infection80
1462155257ProphageA phage genome that has been inserted into a specific site on the bacterial chromosome.81
1462155258Compare and Contrast the two domains of prokaryotesBacteria: larger of two domains, live almost everywhere, surrounded by a peptidoglycan cell wall, some have flagella Archea: smaller of two domains, lack peptidoglycan, more like eukaryotes than like bacteria, live in harsh environments Both: equally small, lack nuclei, have cell walls, prokaryotes, unicellular82
1462155259Structure of a bacteriumHave NO NUCLEUS, but do HAVE a Cell Wall (in some it is more like a CAPSULE) Some have a flagellum, which enable them to move.83
1462155260FlagellaA long, whip-like filament that helps in cell motility. Many bacteria are flagellated, and sperm are flagellated.84
1462155261PiliAppendages that allow bacteria to attach to each other and to transfer DNA85
1462155262PlasmidA small ring of DNA that carries accessory genes separate from those of the bacterial chromosome86
1462155263Coccuscircular87
1462155264Bacillusdashed, rod shaped88
1462155265Spirilluswavy, spiral89
1462155266Diplo-twos90
1462155267Staphyl-clumps/clusters91
1462155268Strepto-linear92
1462214387What are the two methods of bacterial reproduction?binary fission and conjugation93
1462214388Binary fissionA form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size94
1462214389ConjugationIn bacteria, a temporary union of two organisms for the purpose of DNA transfer.95
1462214390Describe the nutritional needs (energy capture) of bacteria: hetero-Takes in organic molecules96
1462214391Describe the nutritional needs (energy capture) of bacteria: auto-Take in energy by personal means (light energy or chemical reactions)97
1462214392Describe the nutritional needs (energy capture) of bacteria: photo-Light energy98
1462214393Describe the nutritional needs (energy capture) of bacteria: chemo-Chemical reactions99
1462214394Describe the atmospheric conditions necessary for bacterial growth: obligate aerobesReleases energy through cellular respiration, often near water or in lungs b/c it REQUIRES AIR100
1462214395Describe the atmospheric conditions necessary for bacterial growth: obligate anaerobesReleases energy through fermentation, often in deep soil, animal intestines, and airtight containers b/c it REQUIRES AIR TO BE NOT PRESENT101
1462214396Describe the atmospheric conditions necessary for bacterial growth: facultative anaerobeslives almost anywhere b/c IT DOES NOT REQUIRE AIR AND DOES NOT REQUIRE NO AIR102
1462214397List ways that prokaryotes are important1: decomposers 2: producers 3: nitrogen fixers 4: remove wastes an poisons from the air 5: yogurt 6: synthesise drugs103
1462214398Explain the cause, prevention, and treatment of bacterial diseasesinfection, messes with cellular processes; sterilization, physical removal, hygiene; vaccines, antibiotics104
1462214399Explain the cause, prevention, and treatment of viral diseasesinfection, messes with cellular processes; vaccines; antivirals -> speed recovery and prolong life105
1462214401VaccineA harmless variant or derivative of a pathogen that stimulates a host's immune system to mount defenses against the pathogen106
1462214402AntibioticsDrugs that block the growth and reproduction of bacteria107
1462214403What are the three patterns of biodiversity noted by Charles Darwin?Species vary globally: different yet ecologically similar, animal species inhabited separated, but ecologically similar habitats around the globe (ex: rabbits and kangaroos) Species vary locally: different, yet related, animal species often occupied different habitats within a local area (ex birds varying slightly from island to island) Species vary over time: some fossils of extinct animals were similar to living species (ex. glyptodon fossils resembled modern armadillos)108
1462214404EvolutionChange in a kind of organism over time; process by which modern organisms have descended from ancient organisms.109
1462214405FossilA preserved remnant or impression of an organism that lived in the past.110
1462214406HuttonEarth: was extremely old (deep time) and was transformed by slow change111
1462214407LyellUniformitarianism: laws of nature are constant over time, scientists must explain past-events in terms of process they can observe in the present112
1462214408MalthusIf human population grew and there was not enough living space and food for everyone (carrying capacity) then only the most fit to survive would live and reproduce113
1462214409Lamark's theory of evolution (and compare it to Darwin's theory)organisms can change during their lifetime by selectively using (or not using) body parts and then pass along these changes to their offspring; this explained evolution through natural processes and suggested that species were not fixed (they could change)114
1462214410Artificial selectionSelection by humans for breeding of useful traits from the natural variation among different organisms115
1462214411Explain Darwin's proposed mechanism of evolution: natural selection (and it's three points)1: struggle for existence: more organisms are born than can survive so there's competition and some must die 2: Variation and adaptation: individual organisms have natural variations among their heritable traits, adaptations are variations that increase an organism's ability to survive and reproduce in its environment 3: Survival of the fittest: fitness: how well an organism can survive and REPRODUCE116
1462214412Struggle for existencecompetition among members of a species for food, living space, and the other necessities of life117
1462214413Variation & adaptationVariation: any range of variation among organisms Adaptation: anything about an organism that aids in their survival (best adaptations survive better)118
1462214414Survival of the fittestProcess by which individuals that are better suited to their environment survive and reproduce most successfully; also called natural selection119
1462214415AdaptationA trait that helps an organism survive and reproduce120
1462214416FitnessAbility of an organism to survive and REPRODUCE in its environment121
1462214417Explain the following evidence of evolution: geologic distribution of speciesDistantly related but Similar, and Closely related but different122
1462214418Explain the following evidence of evolution: closely related but different speciesShows local variation, a recent common ancestor ex: Galapagos Island Species123
1462214419Explain the following evidence of evolution: distantly related but similar speciessimilar habitats have similar natural selection pressures, no recent common ancestor ex: armadillo, anteater, Dangolin, spiny anteater (corners of the globe)124
1462214420Explain the following evidence of evolution: the age of the earth and the fossil recordRadioactive dating shows that the world is 4.5 billion years old and fossils trace evolution of modern species from extinct ancestors125
1462214421Explain the following evidence of evolution: anatomy and embryologyanatomy: through various types of structures (analogous, homologous, and vestigial (see individual cards for each) embryology: similar patterns of development in the embryo (embryological development)126
1462214422Explain the following evidence of evolution: homologous structuresinherited from a RECENT (biologically speaking) common ancestor, show common ancestor, closely related but dissimilar127
1462214423Explain the following evidence of evolution: analogous structuresShows environments favor, look similar, have common function, distantly related but similar, no evolutionary relationship, not a common structure128
1462214424Explain the following evidence of evolution: vestigial structuresinherited from ancestors but lost much (or all) of their original function, different selection pressures129
1462214425Explain the following evidence of evolution: molecular evidence (DNA)1: all living organisms use DNA->RNA-> protein 2: homologous molecules: DNA sequences so similar they must have derived from same ancestral gene or protein130
1462214426Biogeographystudy of where organisms live now and where they and their ancestors lived in the past131
1462214427Homologous structureStructures in different species that are similar because of common ancestry. (ex:human, dog, bird, whale)132
1462214428Analogous structurestructures that do not have a common evolutionary origin but are similar in function (ex: shark, porpoise, ichthyosaur)133
1462214429Vestigial structureremnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species.134
1462214430Characteristics that all animals shareMulticellular, heterotrophic, eukaryotic organisms who lack cell walls, members of the kingdom Animalia135
1462214431Dorsaltop side of the body, think dorsal fin, the back on some animals136
1462214432Ventralthe underside of the body, the stomach on some animals137
1462214433Anteriorthe front of the body138
1462214434Posteriorthe back of the body139
1462214435Difference between radial and bilateral symmetryRadial: many lines of symmetry (ex, starfish) Bilateral: one line of symmetry (ex: people, crabs)140
1462214436What is cephalization and its benefits?The centralization of sense organs and nerve cells at the anterior end, and allow sensory organs to be introduced to the environment sooner (ex: people, dogs)141
1462214437Why is an earthworm called a hermaphrodite?they contain both female and male reproductive parts142
1462214438Closed circulatory systemBlood flows through vessels143
1462214439Earthworm: clitellumSecretes mucus during reproduction, more anterior, fatter, lighter colored area144
1462214440Earthworm: intestinedigests food with enzymes145
1462214441Earthworm: prostomiumupper lip, dorsal side146
1462214442Earthworm: ventral nerve cordchain of ganglia, 3 pair of nerves each segment147
1462214443Earthworm: pharynxthick muscular, contracts and sucks in food148
1462214444Earthworm: nephridiaLittle tubes in each segment except the first and last that get rid of metabolic wastes (N2)149
1462214445Earthworm: cropstores food, more anterior150
1462214446Earthworm: gizzardgrinds food, posterior to crop151
1462214447Earthworm: esophaguscarries food152
1462214448Earthworm: aortic arches5 pairs that contract to push blood around153
1462214449Earthworm: seminal vesiclesstore earthworm's own sperm (larger)154
1462214450Earthworm: seminal receptaclesreceive sperm from another worm (smaller)155
1462214451Earthworm: dorsal blood vesselmoves blood anterior, from intestines where blood absorbs food to bring to other cells (makes the dorsal side a bit darker usually)156
1462214452Earthworm: ventral blood vesselmoves blood posterior157
1462214453Earthworm: setae4 pairs of bristles on the ventral side of each segment except for first and last, used for locomotion158
1462214454Why is the dorsal side of a share darker while the ventral side of the shark is lighter?for camoflague159
1462214455Dogfish (shark): all seven finsmovement160
1462214456Dogfish (shark): spiraclesallow a water passageway into the mouth for respiration161
1462214457Dogfish (shark): gillswater taken in by mouth and spiracles is passed over the internal gills and forced out162
1462214458Dogfish (shark): Ampullae of Lorenzinisensitive to changes in water temperature, pressure, electrical fields, and salinity163
1462214459Dogfish (shark): claspersmale's reproductive part which is inserted into the female for reproduction to transfer sperm (located posterior pelvic fins)164
1462214460Dogfish (shark): cloacareceives the products of the intestine, urinary, and genital ducts and reproductive use on females165
1462214461Dogfish (shark): liverlargest organ in body cavity, rich in oil and stores energy, limited amount of buoyancy, secretes bile166
1462214462Dogfish (shark): gallbladderstores bile from the liver, green and short167
1462214463Dogfish (shark): pancreassecretes pancreatic fluid, located near the stomach168
1462214464Dogfish (shark): esophagusmuscular tube extending from the top of the oral cavity to the stomach and moves food to stomach169
1462214465Dogfish (shark): stomach (rugae)help grind food170
1462214466Dogfish (shark): small intestine"spleen" posterior end, break down food171
1462214467Dogfish (shark): large intestinevulvudar intestine, breaks down food172
1462214468Dogfish (shark): rectal glandregulates amount of salt in the blood173
1462214469Dogfish (shark): heart (2 chambers: atrium and ventricle)pumps blood, atrium is smaller174
1462214470Dogfish (shark): spleenFilters dead blood cells, located at the end of the stomach175
1462214471Dogfish (shark): kidneysribbon like, darkly colored structures lying on either side of the midline the entire length of the body, and manufactor and transport urine and function in the male's reproductive system176
1462214472How is the frog well suited to eating large insects?1: anteriorly attatched tongue 2: jump 20 ft. strong hind legs 3: teeth-> vomerine: pierce, maxilary: grind and push back177
1462214473What is the problem with the frog's 3 chambered heart and how does the frog compensate?oxygenated and deoxygenated blood mix in the ventricle, it just has to work harder, also oxygen can be gained from the skin as well as the lungs178
1462214474Frog reproduction (amplexus, external and sexual reproduction)dude jumps onto the female, she releases her eggs, he fertilizes them externally179
1462214475Ways that frogs and tadpoles are differenttadpole: lives in water, has a tail (chordate), herbivore, gills frog: land and water, no tail, carnivore, lungs/skin180
1462214476Frog: nictitating membraneprotects eyes in water and keeps eye moist on land; inner eyelid181
1462214477Frog: tympanic membranebehind the eyes, connect to inner mouth by Eustachian tubes, for hearing182
1462214478Frog: vomerine teeth2, in the roof of the mouth to hold prey183
1462214479Frog: maxillary teethon upper jaw only, feel like sandpaper184
1462214480Frog: eustachian tubesauditory orifice, connects pharynx to ear, equalize pressure in inner ear185
1462214481Frog: glottislead to LUNGS186
1462214482Frog: esophagustube that leads to the stomach187
1462214483Frog: stomachstarts digesting food, pyloric valve lets food into the small intestine188
1462214484Frog: small intestineabsorb nutrients from food189
1462214485Frog: large intestinecollects wastes and water190
1462214486Frog: cloacaposterior to anus, exit for reproductive matter, urine and feces191
1462214487Frog: liverproduces bile, which helps digest fats192
1462214488Frog: gallbladderstores bile secreted by liver, green193
1462214489Frog: pancreassecretes pancreatic fluid, lies in the curve of the stomach194
1462214490Frog: heart (right and left atria and ventricle)right atrium: doxygenated blood from body left atrium: oxygenated blood from lungs ventricle: recieves blood from both atria, pumps blood to body195
1462214491Frog: spleenstores blood, discharged in emergency, destroys worn out red blood cells196
1462214492Frog: kidneysmain excretory organ, look like kidney beans located dorsally, waste filtered from blood collects as urine197
1462214493Frog: lungs2, underdeveloped, used when the frog is very active198
1462214494Frog: testeswhite, bean shaped, near kidneys, produce sperm199
1462214495Frog: oviductslong, convoluted, ciliated tubules, collect eggs and move them to uterus200
1462214496Frog: fat bodiesyellow, finger-like substances, store fat201
1462214497How do you identify a male or female pig?female: urogenital opening is located just ventral to anus male: urogenital opening is located just posterior the umbilical cord, also undeveloped scrotum202
1462214498Pig: epiglottisback of the mouth to prevent food going into glottis and lungs203
1462214499Pig: tracheasupplies air to lungs, cardiloginous rings204
1462214500Pig: diaphragmsheet of muscle that separates abdominal and thoracic cavities and aids in breathing205
1462214501Pig: liverproduces bile206
1462214502Pig: esophaguscarries food to stomach207
1462214503Pig: stomachstores food and begins digestion, rugae208
1462214504Pig: cardiac sphinctervalve, allows foods into stomach209
1462214505Pig: pyloric sphinctervalve, allows foods into small intestine210
1462214506Pig: small intestinedigests food, connected to stomach, held together by tissue called mesentery211
1462214507Pig: large intestinewider and looped, removes water from partially digested food212
1462214508Pig: caecumappendix, has no known function, located by intestines213
1462214509Pig: mesenterytissue that holds together small intestine214
1462214510Pig: spleenlong reddish brown organ wrapped around stomach, looks like a tongue, that fills with old red blood cells and produces new ones215
1462214512Pig: gallbladdersmall, greenish brown, stores bile, located by liver216
1462214513Pig: uretertubes extending from kidneys to the bladder217
1462214514Pig: kidneylook like kidney beans, located dorsally, filter blood and produce urine218
1462214515Pig: bladderstores urine219
1462214516Pig: larynxvoice box, quite anterior, attached to trachea220
1462214517Pig: thyroid glandv-shaped structure that secretes hormones that control metabolism, posterior to larynx, located on trachea221

Biology Chapter 12: DNA and RNA Flashcards

Key words of Chapter 12 of the 2004 edition of Prentice Hall 's Biology textbook. Also includes some information from Chapters 13 and 14.

Terms : Hide Images
635564882DNAA long molecule made up of nucleotides that stores and transmits the genetic information from one generation of an organism to the next.0
635564883ChromatinConsists of DNA bound to protein in nucleus. When a cell divides the chromatin condense to form chromosomes1
635564884Nucleotidesmonomer of DNA. Made up of three basic components: 5-carbon sugar, a phosphate group, and a nitrogenous base (Adenine, Thymine, Guanine, and Cytosine. In RNA Uracil replaces Thymine)2
635564885PurinesA group of compounds that include Adenine and Guanine. Have two rings in their structures3
635564886PyrimidineA group of compounds that include Cytosine and Thymine. Have one ring in their structure4
635564887Chargaff's RuleAdenine pairs with Thymine and Guanine pairs with Cytosine. He discovered that the ratio between the pairs were almost the exact same5
635564888Double Helixstructure of DNA, has two DNA strands wound around eachother. The two strands are held together by hydrogen bonds that formed in between bases6
635564889Base pairingAdenine can only pair with Thymine and Cytosine can only pair with Guanine. Hydrogen bonds form between the pairs to hold the double helix together7
635564890HistoneProteins that DNA coils around8
635564891NucleosomeThe DNA and histone molecules form a beadlike structure called a nucleosome9
635564892Amino AcidsMonomer of proteins10
635564893DNA replicationDuring this process, the DNA molecule separates into two strands, then produces two new complementary strands. Each strand of the double helix of DNA serves as a template, or model, for the new strand.11
635564894DNA polymeraseenzyme that joins individual nucleotides to produce a DNA molecule, which is a polymer. It also proofreads each new DNA strand, helping to maximize the odds that each molecule is a perfect copy of the original DNA.12
635564895Genescoded DNA instructions that control the production of proteins within the cell.13
635564896RNAContains the genetic code for making proteins14
635564897mRNAServe as messengers from DNA in nucleus to the rest of the cell15
635564898rRNAHelps the ribosome make proteins16
635564899tRNATransfers an amino acid to the ribosome17
635564900TranscriptionThe process in which RNA is made. RNA polymerase separates a DNA strand and uses it as a template with which to make a complimentary RNA strand18
635564901PromoterRegions on the DNA that signal the RNA polymerase to start copying at that point on the chain19
635564902CodonThree consecutive nucleotides that specify a single amino acid that is to be added to the polypeptide (protein) located on the mRNA20
635564903TranslationThe process in which proteins are made. mRNA enters a ribosome and provides the code for which amino acids should be put together. tRNA brings the amino acid to the ribosome so it can form a polypeptide21
635564904PolypeptideMany amino acids held together by peptide bonds22
635564905Anti-codonComplimentary bases on a tRNA to match the mRNA codon23
635564906Gene mutationChanges in the nucleotides24
635564907Point mutationA gene mutation that only changes a single point on the DNA sequence25
635564908Insertion (point mutation)when one nucleotide is added26
635564909Deletion (chromosomal and point mutation)when one nucleotide is taken out27
635564910Substitution (point mutation)when one nucleotide is switched with a different nucleotide28
635564911Frameshift mutationOccurs after an insertion or deletion; all codons are changed to accommodate the extra/one less nucleotide. Can alter protein so much that it is unable to perform its function29
635564912Chromosomal mutationInvolve changes in the number or structure of chromosomes. Mutations may change the locations of genes on chromosomes, and may even change the number of copies of some genes. Changes in whole chromosomes.30
635564913Deletion (chromosomal mutation)When one nucleotide is taken out31
635564914Duplication (chromosomal mutation)When a chromosome produces extra copies of parts of the chromosome32
635564915Inversion (chromosomal mutation)When a part of the chromosome reverses direction33
635564916TranslocationWhen one part of the chromosome breaks of and transfers to another chromosome34
635564917PolyploidyWhen an organism has extra sets of chromosomes35
635564918TransformationAny change in an organism that alters its general character and mode of life36
635564919Recombinant DNADNA molecules that are produced by combining DNA from different sources37
635564920Restriction EnzymeAn enzyme that cuts DNA at a specific sequence of nucleotides38
635564921BacteriophageA kind of virus that infects bacteria. "bacteria eater"39
635564922Missense mutationA point mutation in which a single nucleotide is changed, resulting in a different codon that codes for a different amino acid40
635564923Nonsense mutationA point mutation that results in a premature stop codon41
635564924LigaseAn enzyme that repairs places where the DNA is broken42
635564925Complementary strandA strand of DNA or RNA that has complementary bases to another strand of DNA or RNA. For instance, during DNA replication, the new strand that is formed is a complementary strand. (Complementary bases: A-T, C-G)43
635564926RNA polymeraseThe enzyme that separates and copies the DNA strand to make a complementary RNA strand.44
635564927HelicaseThe enzyme that splits the two strands for DNA replication45
635564928DNA replication1. Helicase unzips the double helix 2. DNA polymerase uses one strand to copy the information to produce another complementary strand 3. DNA polymerase connects individual nucleotides to their corresponding bases to connect the DNA molecule 4. DNA polymerase proof-reads the DNA46
635564929Transcription1. RNA polymerase splits a DNA double helix at a point called a promoter (AUG) 2. RNA polymerase uses one strand as a template to make a complementary mRNA strand47
635564930Translation1. An mRNA molecule in the cytoplasm attaches to a ribosome 2. The proper amino acid is brought into the ribosome by a tRNA (proper=tRNA that matches the codon on the mRNA) 3. In the ribosome connects the amino acids from the tRNA to each other, using rRNA. Ribosome forms a peptide bond between the amino acids and breaks the bond that had held the amino acid to the tRNA. It continues this until it reaches a stop codon, where the polypeptide (or protein) and mRNA is released48
635564931Restriction enzymeEnzymes that cut DNA at a specific sequence of nucleotides49
635564932Recombinant DNADNA molecules that are produced by combining DNA from different sources50
635564933TransformationAny change in an organism that alters its general character and mode of life51
635564934Genetic engineeringMaking changes directly to the DNA molecule52
635564935CloneA member of a population of genetically identical cells produced from a single cell53

Biology Section 15.1: Viruses Flashcards

Terms : Hide Images
2727605581Virusa small infectious agent that is composed primarily of a core of genetic material surrounded by a protein capsid with replication only occurring in living cells of an organism0
2727605582Capsidthe protein coat encasing the genetic material of a virus1
2727605878Bacteriophagea virus that infects bacteria2
2727605879Lysisthe breaking down on a cell such as that seen at the end of the lytic pathway when viruses are released from the host cell3
2727605884Lytic pathwaya type of viral reproduction where the virus lyses, or breaks open the host cell membrane in order to release the newly replicated viruses4
2727606247Lysogenic pathwaya type of viral reproduction involving the incorporation of the viral genes into the host cell chromosomes where they remain dormant until the genes are turned on in order to produce copies of the virus5
2727606248HIVthe human immunodeficiency virus, which causes AIDS and results in the loss of T cell and immune system functioning6
2727606437AIDSan acronym that stands for acquired immune deficiency syndrome, which is characterized by the loss of the immune system and caused by HIV, the human immunodeficiency virus7
2727606623Influenzaa viral infection commonly known as the flu; causes fever, fatigue, and respiratory infections8
2727606438Common colda condition caused by a variety of viruses, the most common being the rhinovirus, which can result in fever, fatigue, and respiratory infection9
2727606800Hepatitis Aa virus that causes inflammation of the liver10

Biology Fall Semester Review Flashcards

BHS Schaeffer 2010 fall

Terms : Hide Images
114491529qualitative datadata you collect usuing your senses0
114491530quantitative dataNumerical measures/values used to quantify, /describe the characteristics or behaviors being measured.1
114491531sampling biasA problem that occurs when a sample is not representative of the population from which it is drawn.2
114491532measurement biasa form of inaccurate measurement in which the data consistently overestimate or underestimate the true value of an event3
114491533observationswritten description of what was noticed during the experiment.4
114491534inferencesPossible interpretations of observations that are based on previous experience.5
114491535scientific methoda method of investigation involving observation and theory to test scientific hypotheses -- a series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions. QUESTIONS, BACKGROUND RESEARCH, HYPOTHESIS, PROCEDURE, DATA COLLECTION, DAT ANALYSIS, CONCLUSIONS though not always in that order.6
114491536characteristics of living thingsmade of cells, need energy, grow and develop, respond to the environment, reproduce, adaptations to the environment, produce waste//DNA-GROWTH AND DEVELOPMENT-RESPONSE TO ENVIRONMENT-MADE OF CELLS-LIVING THINGS EVOLVE-USE OF ENERGY AND MATTER-HOMEOSTASIS-LIVING THINGS REPRODUCE7
114491537atombasic unit of matter8
114491538macromoleculemade in living systems from smaller building blocks covalently bonded; four classes: proteins, nucleic acids, carbohydrates, and lipids9
114491539carbohydratecompound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body10
114491540• glucoseThe body's blood sugar; a simple form of carbohydrate11
114491541• fructosea simple sugar found in honey and in many ripe fruits12
114491542• galactosemilk sugar13
114491543• sucroseglucose + fructose14
114491544• lactoseglucose + galactose15
114491545• maltosemalt sugar, glucose + glucose16
114491546• monosaccharidesingle sugar molecule17
114491547• disaccharidea sugar formed from two monosaccharides18
114491548• polysaccharidea complex molecule composed of three or more monosaccharides19
114491549• starcha carbohydrate, the main food energy source for human beings20
114491550• gycogenstarch; glucose is stored in the form of glycogen(in liver cells)21
114491551• celluloseA substance (made of sugars) that is common in the cell walls of many organisms22
114491552• simple sugarsMainly glucose. Can be joined together to form more complex carbohydrates such as starches, cellulose, etc.23
114491553• complex carbohydratesstarches which are made up of many sugars and are found in foods like potatoes, beans, and whole grain cereals24
114491554lipidmacromolecule made mainly from carbon and hydrogen atoms; includes fats, oils, and waxes25
114491555• glycerolwith fatty acids, make up the building blocks of lipids26
114491556• fatty acidssimple forms of fat that supply energy fuel for most of the body's cells27
114491557• triglyceride3 fatty acids (chains of hydrocarbons) bonded to a glycerol, most fats are eaten and absorbed in this form, carbohydrate28
114491558• saturatedconcerning fats and health, those fats associated strongly with heart and artery disease; mainly fats from animal sources29
114491559• unsaturatedconcerning fats and health, fats less associated with heart and artery disease; mainly fats from plant sources30
114491560• cell membranethin, flexible barrier around a cell; regulates what enters and leaves the cell31
114491561• hormones and steroids1. chemical "messengers" of the endocrine system that are released into the blood. 2. Many of this type of lipid serve as chemical messengers or as parts of the cell membrane; examples include cholesterol, testosterone, and estrogen32
114491562proteinmacromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair and to make up enzymes33
114491563• amino acidbasic building blocks of protein molecules34
114491564• essential amino acidan amino acid that cannot be made by the body and must be supplied by the diet35
114491565• amino groupA functional group that consists of a nitrogen atom bonded to two hydrogen atoms; can act as a base in solution, accepting a hydrogen ion and acquiring a charge of +1.36
114491566• carboxyl groupA functional group present in organic acids and consisting of a single carbon atom double-bonded to an oxygen atom and also bonded to a hydroxyl group.37
114491567• enzymeany of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions38
114491568digestive systemcomponents: organs of gastrointestinal tract, a long tube that includes the mouth, pharynx (throat), esophagus, stomach, small and large intestines, and anus; also includes accessory organs that assist in digestive processes, such as salivary glands, liver, gallblader, and pancreas; functions: achieves physical and chemical breakdown of food; absorbs nutrients; eliminates solid wastes39
114491569hydrolyzefat broken down into water or carbohydrates that can be absorbed or expelled, from pancreatic juice40
114491570ecologythe branch of biology concerned with the relations between organisms and their environment41
114491571economicshow ecology deals with resources42
114491572biotic and abiotic factorsbiotic - living processess, ex plants(type, number) and predator/prey pop. abiotic - physical or chemical processes ex conditions (vary in time and space) ex temp, wind, heat, pH level, salinity, and fire and resources (more local) ex water, minerals, nutrients, and barriers (natural or man-made) = limit factors43
114491573water cyclethe continuous movement of water between Earth's surface and the air, changing from liquid to gas to liquid44
114491574evaporationthe process by which water changes from liquid form to an atmospheric gas45
114491575condensationatmospheric moisture that has condensed because of cold46
114491576precipitationthe falling to earth of any form of water (rain or snow or hail or sleet or mist)47
114491577runoffwater that flows over the ground surface rather than soaking into the ground, the occurrence of surplus liquid (as water) exceeding the limit or capacity48
114491578transpiration & transpiration pullwhen water evaporates from the leaves of a plant, water is pulled up to replace what was lost.49
114491579Carbon cyclethe circulation and reutilization of carbon atoms especially via the process of photosynthesis and respiration.50
114491580fossil fuelfuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content, a nonrenewable energy resource formed from the remains of organisms that lived long ago51
114491581photosynthesis(plants absorb CO2 during this process), process by which plants use the sun's energy to convert water and carbon dioxide into sugars52
114491582combustion of fossil fuels (burning)possibly creates global warming53
114491583Nitrogen cyclethe circulation and reutilization of nitrogen in both inorganic and organic places.54
114491584fertilizerany substance such as manure or a mixture of nitrates used to make soil more fertile55
114491585bacteriaProkaryotic, one-celled organisms. Some transmit diseases. Most act as decomposers and get the nutrients they need by breaking down complex organic compounds in the tissues of living or dead organisms into simpler inorganic nutrient compounds.56
114491586nitrogen fixationprocess by which certain bacteria convert nitrogen gas to ammonia57
114491587decompose (decomposition)to decay or to break down into basic elements58
114491588runoff and pollutionwater that flows over the ground surface rather than soaking into the ground, undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities59
114491589Phosphorus cycleThe movement of phosphorus atoms from rocks through the biosphere and hydrosphere and back to rocks.60
114491590fertilizerchemicals used to help plants grow as in phosphorous (mined) and this contributes to runoff and pollution61
114491591autotroph (producer)organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds62
114491592heterotroph (consumer)organism that obtains energy from the food it consumes63
114491593primary producerAn autotroph, usually a photosynthetic organism. Collectively, autotrophs make up the trophic level of an ecosystem that ultimately supports all other levels.64
114491594herbivoreany animal that feeds chiefly on grass and other plants65
114491595carnivoreany animal that feeds on flesh66
114491596omnivoreorganism that obtains energy by eating both plants and animals67
114491597decomposerorganism that breaks down and obtains energy from dead organic matter68
114491598scavengerany animal that feeds on refuse and other decaying organic matter69
114491599detritivoreorganism that feeds on plant and animal remains and other dead matter70
114491600food chain(ecology) a community of organisms where each member is eaten in turn by another member71
114491601food web(ecology) a community of organisms where there are several interrelated food chains72
114491602energy pyramida diagram that shows the amount of energy that moves from one feeding level to another in a food web73
114491603trophic leveleach step in a food chain or food web74
114491604niche(ecology) the status of an organism within its environment and community (affecting its survival as a species) know about conflict and resolution therein75
114491605cell(biology) the basic structural and functional unit of all organisms76
114491606prokaryoteA unicellular organism that lacks a nucleus and membrane bound organelles77
114491607eukaryoteA cell that contains a nucleus and membrane bound organelles78
114491608cell membranethin, flexible barrier around a cell; regulates what enters and leaves the cell79
114491609cell wallstrong layer around the cell membrane in plants, algae, and some bacteria80
114491610nucleusa part of the cell containing DNA and RNA and responsible for growth and reproduction81
114491611chloroplastorganelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy82
114491612mitochondrionan organelle containing enzymes responsible for producing energy83
114491613ribosomesmall particle in the cell on which proteins are assembled; made of RNA and protein84
114491614parts of Microscopeeyepiece-where you look through to see the image of your specimen. 2. body tube-the long tube that holds the eyepiece and connects it to the objectives. 3. nosepiece-the rotating part of the microscope at the bottom of the body tube; it holds the objectives. 4. objective lenses-(low, medium, high, oil immersion) the microscope may have 2, 3 or more objectives attached to the nosepiece; they vary in length (the shortest is the lowest power or magnification; the longest is the highest power or magnification). 5. arm-part of the microscope that you carry the microscope with. 6. coarse adjustment knob-large, round knob on the side of the microscope used for focusing the specimen; it may move either the stage or the upper part of the microscope. 7. fine adjustment knob-small, round knob on the side of the microscope used to fine-tune the focus of your specimen after using the coarse adjustment knob.85
114491615Mitosis (cell division in eukaryotes)in eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes86
114491616chromosomein a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA87
114491617centriolein animal cells, a cytoplasmic organelle that organizes the mitotic spindle fibers during cell reproductions88
114491618spindle fiberone of the microtubles that extend across a dividing eukaryotic cell89
114491619interphasea period between two mitotic or meiotic divisions during which the cell grows, copies its DNA, and synthesizes proteins90
114491620prophasethe first stage of mitosis or meiosis in eukaryotic cell division, during which the nuclear envelope breaks down and strands of chromatin form into chromosomes91
114491621metaphasethe stage in mitosis or meiosis in which the duplicated chromosomes line up along the equatorial plate of the spindle92
114491622anaphasea phase of mitosis and meiosis in which the chromosomes separate93
114491623telophase and cytokinesisNuclear membranes form. The cell separates into two cells.94
114491624Binary Fissiona form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size95
114491625Cell division in prokaryotesdo not have nucleus; divide into two identical cells by binary fission; asexual reproduction; chromosomes attached to cell membrane makes a copy of itself and the cell grows to about twice the normal size; cell walls for between chromosomes and the parent cell splits into two new identical daughter cells (clones)96
114491626cyclinsproteins that regulate the cell cycle97
114491627apoptosisa type of cell death in which the cell uses specialized cellular machinery to kill itself98
114491628p53 geneThe guardian angel of the genome, a gene that is expressed when a cell's DNA is damaged. Its product, a protein, functions as a transcription factor for several genes.99
114491629preventable causeslung and sun100
114491630non-preventable causesgenetics and age101
114491631Cell Theory Lecture1. All living things are made of cells 2. All cells come from other cells All cells contain the genetic material of the organism in which they are from102

Biology 101 Test 1 Flashcards

Tidewater Community College, Virginia Beach
Biology 101 M. Sugermeyer
Chapters 1 & 2

Terms : Hide Images
902166132define biologythe study of life greek (bios=life; ology=study of)0
902166133first three levels of organized life in orderproton, neutron, electron1
902166134last level of organized lifebiosphere2
903497278List the 5 body conditions affected by the marathon. Also, tell whether the condition increased or decreased.Weight-decreased Temperature-increased Breathing-increased Heart rate-increased Fuel-decreased3
903497279Maintaining stable conditions in the body is called...Homeostasis4
903497280Body processes require what type of environment?Controlled5
903497281The body begins to use fat as fuel after what has occurred?After blood glucose & stored glycogen are used up.6
903497282Name three ways heat can be removed from the body.Radiation Convection Evaporation7
903497283Many of the body's chemical reactions cease to function when this occurs.Core body temp goes too high.8
903497284What do muscles produce as a result of contraction?Heat9
903497285What gas is needed to keep the muscles working?Oxygen10
903497286In gas exchange, what goes in? What comes out?Oxygen goes in. Carbon Dioxide comes out.11
903497287Where does gas exchange take place in the body?The lungs.12
903497288Early in a race would you expect the blood glucose to raise or drop?Drop.13
903497289Adrenaline stimulates the liver to break down glycogen into...Glucose.14
903497290What causes increased heart and breathing rates before a race?Release of adrenaline15
903497291Most of the weight lost during a marathon is in what form?Sweat (fluid water)16
903497292Give an example of negative feedback.Hormone from the brain causing the kidneys to reduce urine production.17
903497293Name the two types of particles in the nucleus of an atom.Proton Neutron18
903497294Name the particle found outside the nucleus of an atom.Electron19
903497295Define element.Something made up of only one type of atom.20
903497296The number of ________ in the nucleus of an atom determine what the atom is.Protons21
903497297What element has 6 protonsCarbon22
903497298What is the atomic number of Carbon623
903497299Name the six elements most important to biomolecules.CHOPNS Carbon Hydrogen Oxygen Phosphorus Nitrogen Sulphur24
903497300What is the charge of a proton?Positive25
903497301What is the charge of an electron?Negative26
903497302What is the charge of a neutron?Neutral27
903497303The atomic mass of an element is made up of what two types of particles?Protons & Neutrons28
903497304Isotopes are atoms of the same element that have different numbers of __________.Neutrons29
903497305________=_________ in an atom.Electrons; Neutrons30
903497306Define energy levels as it pertains to an atom.The area in which electrons move around the nucleus.31
903497307Do electrons that are closer to the nucleus have more or less energy?Less.32
903497308How many electrons can fit into each of the three energy levels?Level 1=2 Level 2=8 Level 3=1833
903497309The name for atoms that have filled or satisfied outer energy levels.Inert or rare gases.34
903497310What type of bonds do atoms without satisfied outer energy levels tend to form?Molecular.35
903497311The name for a charged atom.Ion36
903497312Oppositely charged ions are attracted to each other and form what type of bond?Ionic37
903497313Covalent bonds are formed between two atoms that share what?Electrons38
903497314Three shared pairs of electrons is called a _______ covalent bond.Triple39
903497315What is the process of atoms sharing or transferring electrons with one another?Chemical reactions.40
903497316Chemical equations must be _________.Balanced41
903497317What is the most abundant molecule in living things?Water42
903497318Water covers what ratio of the Earth?3/443
903497319What two ions can water molecules disassociate into?Hydrogen and Hydroxide44
903497320This is used to measure how acidic or basic a solution is and is calibrated from 1-14.The pH scale45
903497321In what type of solution are the Hydrogen and Hydroxide ions equal?A neutral solution46
903497322Which type of solutions a a pH LOWER than 7?Acidic47
903497323A basic solution has a pH ________ than 7.Higher48
903497324The pH of blood is between _____ & ______.7.2; 7.449
903497325What atom is essential to biological chemicals?Carbon50
903497326What type of bond does carbon form with itself and other elements?Covalent51
903497327This is the type of chemistry devoted to the study of carbon and its compounds.Organic52
903497328This is the most abundant biomolecule.Carbohydrates53
903497329What is the name for the most basic carbohydrate?Glucose54
903497330List the formula for glucose.C6H12O655
903497331Two monosaccharides combine to form one disaccharide in a process known as condensation reaction or _______________.Dehydration Synthesis56
903497332The process in which polysaccharides are broken apart is called what?Hydrolysis Reaction57
903497333This is the most common form of hydrolysis.Digestion58
903497334The main structural carbohydrate of plants is __________.Cellulose59
903497335The name given the structural carbohydrate that makes up the exoskeleton of crabs, insects, etc.Chitin60
903497336___________ are insoluble in water and other polar molecules.Lipids61
903497337This is the structural basis for most lipids.Fatty acids62
903497338Saturated fat has what type of covalent bond?Single63
903497339Fatty acids with double covalent bonds are known as what?Unsaturated fat64
903497340This type of fatty acid is less reactive and tends to deposit itself in the arteries.Saturated fat65
903497341_________ contains twice the amount of energy as the same amount of carbohydrates.Fat66
903497342Plants convert excess of this into oils.Starch67
903497343Seals can live in cold climates due to _________ acting as insulation.Lipids68
903497344Our kidneys are protected by a layer of padding made up of what?Fat69
903497345What type of outer coating protects the outer surface of leaves?Waxy70
903497346Proteins are made up of this type of acid.Amino71
903497347How many different types of amino acids are used to build protein in living organisms?2072
903497348This type of bond is responsible for joining amino acids.Peptide bonds73
903497349A specific shape in a protein allows it to have what?A specific function74
903497350DNA is what type of acid?Nucleic75
903497351Define nucleotide.A single unit of nucleic acid76
903497352How many types of nucleotides are found in DNA?Four77
903497353DNA is a ________ stranded molecule.Double78
903497354This is DNA's single stranded counterpart.RNA79
903497355What replaces thiamine in RNA?Uracil80
903497356DNA & RNA carry this code.Genetic81
904431733Organisms must obtain & use _______ & ________ from the environment.Energy & nutrients82
904431734The ability to do work can also be called this.Energy83
904431735What is a humans source of energy?Food84
904431736Where does the energy for most living organisms originate?The Sun85
904431737This is defined as any substance that promotes growth or provides energy.Nutrients or Materials86
904431738What is a humans source of nutrients or materials?Food87
904431739The use of energy in a living organism is called ________.Metabolism88
904431740Metabolism is also the chemical reactions in cells that build up and break down what?Molecules89
904431741Name two metabolic processes.Respiration & Photosynthesis90
904431742Give the common & scientific name for the three trophic levels.Producers; Autotrophs. Consumers; Heterotrophs. Decomposers; Saprotrophs.91
904431743Producers, or autotrophs, are organisms that produce what?Their own food.92
904431744The process of producing glucose without light is called what?Chemosynthesis93
904431745An organism capable of chemosynthesis is called a ___________.Chemoautotroph94
904431746Give an example of a chemoautotroph and where it might be found.Bacteria and archea located in deep ocean trenches or in swamps.95
904431747Heterotrophs must acquire what in order to survive?Food96
904431748List four examples of heterotrophs.Bacteria, protists, fungi and animals97
904431749Are humans heterotrophs or autotrophs?Heterotrophs98
904431750Saprotrophs or decomposers consume what?Dead or decaying organisms.99
904431751__________ are used in the production of beer, wine and cheese. They can also attack humans.Decomposers100
904431752How do decomposers have an affect on the environment?The break down biomolecules into small fragments that can be used by an autotroph to build more biomass.101
904431753A series of organisms that are prey and predators is called this.Food Chain102
904431754_____ _______ can be defined as interlocking food chains in a community.Food Webs103
904431755Can organisms sense conditions and respond to changes in the environment?Yes104
904431756Organisms respond to stimuli to perpetuate the species and maintain what?Their own health.105
904431757Name some of the features of homeostasis and the healthy parameters of these features.Temperature; 96-99 degrees, blood glucose; 90-110106
904431758Low water balance is known as this.Dehydration107
904431759Organisms grow and reproduce based on instructions contained in ___________.DNA108
904431760Name the two types of reproductionAsexual and sexual109
904431761Asexual reproduction does not involve what? Why? Give an example of an asexual reproducer.Gametes. Single parent reproduction. Grass and aphids.110
904431762This type of reproduction involves the fertilization of gametes. Give an example of something that reproduces this way.Sexual. Plants, animals, fungi, protists111
904431763Growth and development can be defined as a series of ________ __________ by which a mature cell or organism comes into existence.Orderly changes.112
904431764Mutations are sources of ________ in heritable traits and are typically not good for the organism.Variations113
904431765Changes in DNA sequences in genes are called this.Mutations114
904431766Portions of a chromosome that code for a trait are called what?Genes115
904431767Inheritance is when genes are passed from ________ to _____________.Parent to offspring.116
904431768Traits that enhance survival are called _______.Adaptive traits.117
904431769Give an example of an adaptive trait.Protective coloration118
904431770What is biology's central theme?Evolution119
904431771Wallace & Darwin believed in evolution through this process.Natural selection120
904431772Inheritance by acquired characteristics was a theory of this man.Lamark121
904431773Increased survival and reproduction by the most well adapted individuals is known as __________ _________.Natural selection122
904431774The cause of diversity was a focus of what century?The 19th century.123
904431775Artificial selection is the selection of individuals for certain traits by whom? Give an example.Man. Dog breeds, pest resistant crops124
904474712New properties that emerge with each step upward in the hierarchy of life.Emergent properties125
905179179Name four molecules that all organisms are made up of.Protein, DNA, carbs, fat126
905246661List the sequence of the genetic codeDNA-RNA-protein127
905246662Amino acids linked toegether to form a protein is called what?Protein synthesis mechanism128
905246663Name a few genes that are similar in organisms that are very different. For example, humans and rabbitsGenes for growing hair, genes for pigmentation, genes for digestion129
905246664Name a homologous structure that is visible evidence for the unity of life.bones130
905246665Names some behavioral similarities as visible evidence for the the unity of lifeHunting & mating behaviors, caring for the young131
905246666Name a place on Earth where the diversity of life is very evident.Coral reefs or tropical jungles132
905246667The study of the general principles of scientific classification is know as ____________.Taxonomy133
905246668How many domains are there in taxonomy? Name them.3. Bacteria, Archaea, Eurkaya134
905246669List mnemonic device for classification in taxonomy.Did King Phillip Call Out For Good Soup Domain Kingdom Phylum Class Order Family Genus Species135
905246670Control groups test the test and do not include what?Independent variable136
905246671Experimental groups show the ________ variable.Dependent137
905246672This variable is the same for all groups.Control138
905246673A variable that can be manipulated by the researcher is called the what?Independent variable139
905246674The observed outcome of a test is know as ___________ ___________.Dependent variable140
905246675Give the name for a testable phenomena supported by large body of experimental evidence or facts.Theory141
905246676Matter is the physical material of the universe that has _____________ and takes up ____________.mass and space142
905246677Any substance that cannot be separated into simpler substances and that singly or in combination constitute all matter is called what?An element143
905246678How many naturally occurring elements are there?92144
905246679Bulk elements are the six major elements in living organisms. Name these six elements.Carbon, Hydrogen, Oxygen, Phosphorus, Nitrogen, Sulfur145
905246680Trace elements present in living organisms as well, only in lesser amounts. Name two trace elements.Potassium and Sodium (K & Na)146
905246681In reference to the Periodic Table of Elements, the last row on the right is made up of what type of elements?Inert147
905246682In 1820, John Dalton said that an atom is the smallest particle of an element. This became known as the __________ ____________.Atomic Theory148

Biology Spring Final Exam Flashcards

Terms : Hide Images
794553869Binary FissionDivision of prokaryotic cells; produces 2 cells0
794553870chromatidsone half of a replicated chromosome1
794553871centromerepoint at which 2 chromatids are connected2
794553872homologous chromosomesthe chromosomes have the same size, same shape, and same genetic information.3
794553873sex chromosomesdetermines the sex of an organism4
794553874prophasefirst phase of mitosis5
794553875cytokinesissplitting of cytoplasm6
794553876adeninecompliments thymine7
794553877guaninecompliments cytosine8
794553878cytosinecompliments guanine9
794553879uracilcompliments adenine10
794553880nitrogenous basesbase that contains nitrogen it; is either a purine or pyrimidine (4 of them)11
794553881codonthree nucleotide sequence found on mRNA12
794553882deoxyribosesugar found in DNA.13
794553883helicaseenzymes that separate the DNA strings14
794553884nucleotidemade of a phosphate, sugar, and a base.15
794553885purinemade of 2 rings16
794553886Complete dominancewhen both alleles are dominant Example:RR or Rr17
794553887Incomplete Dominanceneither alleles completely dominant over the other resulting in three outcomes.18
794553888F1 generationoffspring of parents, stands for 1st felilie19
794553889F2 generationoffspring of F, stands for 2nd felilie20
794553890nondisjunctionwhen homologous chromosomes fail to separate21
794553891germ cell mutationwhen a sex cell (gamete) has a mutation22
794553892somatic cell mutationmutation in a body cell23
794553893homozygousboth alleles of the gene pair are the same ex:HH or hh24
794553894heterozygouswhen both alleles of the gene pair are different ex: Hh25
794553895dominantthe gene that masks ex:HH or Hh26
794553896recessivethe gene that is masked, it's being covered ex:Hh27
794553897genotypegenetic make up28
794553898phenotypephysical appearance29
794553899monohybrid crossa cross dealing with one characteristic30
794553900sex chromosomes for a female and maleXX= Female XY= Male31
794553901Sex linked traittrait linked to a sex chromosome (can be on both X or Y) ex: hemophilia32
794553902father of geneticsgregor mendel, did his study on pea plants33
794553903What shape represents a female?Circle34
794553904What shape represents a male?square35
794948655A blood typeIA IA or IA i36
794948656B blood typeIB IB or IB i37
794948657O blood typeii38
794948658AB blood typeIA IB39
794948659Universal donorO40
794948660Universal RecipientAB41
794948661James Watson & Francis CrickThe Nobel Prize was given to these men for writing a paper saying that DNA was a double helix.42
794948662Rosalind FranklinShe was not credited with the Nobel Prize because she died. She was an expert in X-ray crystallography.43
794948663The primary function of DNA in cells is tostore information that tells the cells which proteins to make.44
794948664The two strands of DNA molecule are held together byHydrogen bonds45
794948665According to the base-pairing rules, guanine binds withCytosine46
794948666Which of the following is NOT a correct structure of a nucleotide?Adenine--ribose--phosphate47
794948667Before replication can take place,the two strands of DNA must separate.48
794948668Replication of the two DNA strands takes placein two different directions49
794948669In replication in prokaryotes,two replication forks move on opposite directions50
794948670A mutation is achange in the nucleotide sequence of DNA51
794948671Which of following enzymes is involved with breaking hydrogen bonds?DNA helicase52
794948672A protein is a polymer consisting of a specific sequence ofamino acids53
794948673The genetic code specifies the correlation betweenan RNA-nucleotide sequence and an amino-acid sequence.54
794948674During translation, one end of a tRNA molecule pairs with a complementarymRNA codon55
794948675In eukaryotic cells, RNA is copied from DNA in thenucleus56
794948676Two amino acids are linked by a peptide bond whentwo tRNAs pair with neighboring codons on an mRNA transcript.57
794948677During cell division, the DNA in a eukaryotic cell is tightly packed and coiled intochromosomes58
794948678Between cell divisions, the DNA in a eukaryotic cell is uncoiled and spread out; in this form it is calledchromatin59
794948679The chromosomes of most prokaryotes consist of proteins anda singular circular DNA molecule.60
794948680Humans have 46 chromosomes in all cells except sperm and egg cells. How many of these chromosomes are autosomes?4461
794948681If an organism has a diploid, or 2n, number 16, how many chromosomes do its sperm and egg cells contain?862
794948682Prokaryotic cells reproduce by a process calledbinary fission63
794948683In eukaryotic cells, DNA is copied during a phase of the cell cycle calledS phase64
794948684The cytoplasm of a eukaryotic cell divides by a process calledcytokinesis65
794948685The fibers that extend from centromere to centromere during mitosis arepolar fibers66
794948686In the G 0 phase, cellsexit from the cell cycle67
794948687During synapsis, thechromosomes line up next to their homologues68
794948688During crossing-over, portions of chromatidsbreak off and attach to adjacent chromosomes on the homologous chromosomes69
794948689In which phase of meiosis do tetrads form?prophase I70
794948690Meiosis IIseparates chromatids into opposite poles of the cell71
794948691in oogenesis, a diploid reproductive cell divides meiotically to produceone haploid gamete72
794948692Mitosis1. Starts with one diploid cell and ends with two diploid cells 2. Produces somatic (body) cells 3. One division73
794948693Meiosis1. Start with one diploid cell and end with four haploid cells. 2. Produces gametes (sex) cells 3. Two divisions74
794948694Mendel obtained plants that were true-breeding for particular traits byallowing plants to self-pollinate for several generations75
794948695When Mendel crossed a strain of tall pea plants with a strain of short pea plants, he observed that all the plants in the F1 generation were tall. This suggests thatthe tall trait was contolled by a dominant factor.76
794948696A cross between true-breeding green-podded pea plants and true-breeding yellow-podded pea plants produces only green-podded plants. When the F1 generation is allowed to self-pollinate, the F2 generation consists ofabout three-quarters green-podded plants and one-quarter yellow-podded plants.77
794948697When alleles for different characteristics are on separate chromosomes, they are distributed to gametes independently. This observation is summarized by the law ofindependent assortment78
794948698The appearance of an organism is itsphenotype79
794948699A genetic cross performed many times produces 798 long-stemmed plants and 266 short-stemmed plants. The probability of obtaining a short stem plant in a similar cross is266/106480
794948700A monohybrid cross of two individuals that are heterozygous for a trait exhibiting complete dominance would probably result in a phenotypic ratio of3 dominant: 1 recessive81
794948701To determine the genotype of an individual that shows the dominant phenotype, you would cross the individual with one that ishomozygous recessive82
794948702In a dihybrid cross between an individual with the genotype RRYY and an individual with the genotype rryy, all of the offspring will have the genotypeRrYr83
794948703Genes that belong to the same linkage group tend to beinherited together84
794948704Two genes that are one map unit apart are separated by crossing-over1% of the time85
794948705Mutations that can be inherited arise ingerm cells86
794948706Which of the following sequences could result from an inversion of the sequence GAGACATT?GATACAGT87
794948707Which of the following is a point mutation that does not produce a frameshift?substitution88
794948708Which individual(s) in the pedigree shown below must be a carrier?both 1 and 489
794948709Since the ABO blood group alleles are codominant, an individual with the genotype IA IB will have blood typeAB90
794948710Which of the following human traits is not a polygenic trait?ABO blood type91
794948711In humans, PKU can be treated bydiet92
796088603Modern version of Linneaus classification systemDomain Kingdom Phylum Class Order Family Genus Species93
796088604Scientific Name for humansHomo sapiens94
796088605Domain and Kingdom for HumansEukarya;Animalia95
796088606Gram NegativeTakes up second stain (safranin O) Appears pink Thin layer of peptidoglycan96
796088607Gram PositiveRetain the intial stain (crystal violet) Appears purple Thick layer of peptidoglycan97
796088608Bacillusrod shaped98
796088609Coccussphere shaped99
796088610Spirillusspiral shaped100
796088611Aristotle classified animals on the basis ofwhere they lived.101
796088612The main criterion used in Linnaeus's system of classification is an organism'smorphology102
796088613Each subset within a class of organisms is called a(n)order103
796088614In the scientific name of an organism, the first part is thegenus104
796088615The species name of the pangolin isManis temminckii (italicized)105
796088616The organisms that live in hostile environments that cannot support other forms of life are members of the domainArchaea106
796088617Amoebas and paramecia belong to the kingdomProtista107
796088618mushrooms, puffballs, mildews, and som emolds belong to the kingdomFungi108
796088619the domain that includes the oldest known fossil cells is calledEukarya109
796088620The domain Eukarya includesprotists, fungi, plants, and animals.110
796088621Fossil evidence indicates that the earliest prokaryotes on Earth lived about2.5 billion years ago.111
796088622Which of the following types of bacteria would you most likely find in very salty water?halophile112
796088623Archaea and Bacteria are placed in separate domains becausetheir rRNA sequences are different.113
796173221Actinmycetes areGram-positive bacteria that form branching filaments.114
796173222Which of the followin gtypes of bacteria would you be most likely to find in the human intestinal tractenteric bacterium115
796173223One structure you would not find in a bacterial cell is amitochondrion116
796173224Which of the following is not a method of movement used by bacteria?forceful expulsion of water from contractile vacoules.117
796173225Photoautotrophic bacteria obtain energyfrom the sun.118
796173226Which types of bacteria can live in the presence of oxygen?only obligate aerobes and faculative anaerobes.119
796173227The process by which two living bacteria bind together and transfer genetic information is calledconjugation.120
796173228One bacterial disease that is transmitted by contaminated water ischolera121
796173229A poison that is released from th eouter membrane of dead Gram-negative bacteria is calledan endotoxin.122
796173230Which of the folloeing is not a way that bacteria cause disease in humans?conjugating with human cells.123
796173231Bacteria can become resistant to antibiotics byacquiring an R-plasmid for resistance.124
796173232One of the postive ways bacteria affect our lives is byhelping to clean up oil spills.125
796173233Viruses are not alive becauseall of the above. (do not grow, lack cell parts, do not metabloize)126
796173234Viruses can reproduceonly within host cells.127
796173235The enzyme reverse transcriptase usesRNA as a template to make DNA.128
796173236The grouping of viruses is based partly on thepresence or absence of an envelope129
796173237Phage DNA that is integrated into host cell's chromosomes is aprophage130
796173238One viral disease that can occur in childhood and then reappear in adulthood in a more serious form ischickenpox131
796173239The most successful approach to controlling viral diseases has been the use ofvaccines132
796173240Which of the following viral diseases is now considered to be eradicated?smallpox133
796173241An emerging virus is one that ariseswhen isolated habitats are developed by humans.134
796173242A disease-causing particle made of RNA without a capsule is calleda viroid.135
796173243Mucus serves as a nonspecific defense to pathogens bycapturing pathogens136
796173244Which of the following statements is false?Fever activates cellular enzymes.137
796173245Macrophagesall of the above (are white blood cells, cross blood-vessel walls, engulf and destroy large pathogens)138
796173246Natural killer cells arenone of the above (specialized red blood cells, infected cells, phagocytes)139
796173247AN inflammatory response is initiated bypathogens140
796173248Which of the following are not lymphocytes?macrophages141
796173249Bone marrow is considered part of the immune system because itproduces white blood cells.142
796173250B cellsare involved with the humoral immune response.143
796173251Interleukins are secreted byhelper T cells.144
796173252Cell-mediated immune response requirehelper T cells.145
796173253A diagnosis of AIDS is made when a person hasfew T cells146
796173254Which of the following is a route of HIW transmission?sharing of hypodermic needles147
796173255The most common means of HIV transmission issexual intercourse with a person infected with HIV.148
796173256Vaccines against HIV are difficult to design because HIVchanges rapidly.149
796173257HIV begins to reproduceshortly after infection.150
796173258What does macrophage mean?big-eater151
796173259What type of chemical do vaccines produce?anitbodies152
796173260Protozoans are members of the kingdomProtista153
796173261One characteristic that is not found in any protozoan ismulticellularity154
796173262All protists are capable ofeither asexual of sexual reproduction155
796173263All of the following are structures used for protist movement exceptzoospores156
796173264Protists are thought to have evolved fromancient prokaryotes157
796173265Amoebas move by means of a process known ascytoplasmic streaming158
796173266Which of the following is formed from the tests of dead sacrodines?limestone159
796173267Sexual reproduction in ciliates involvesthe exchange of haploid micronuclei between two individuals.160
796173268One disease caused by a mastigophoran issleeping sickness161
796173269Most species in the phylum Apicomplexa areparasitic and have complex life styles.162
796173270Algae differ frm protozoans in that algae arephotosynthetic163
796173271The body portion of seaweed is calledthallus164
796173272Algae are classified into phyla based on all the following except theirpresence or absence of flagella165
796173273A plasmodial slime mold will generally form a fruiting body whenfood or water is scarce.166
796173274Separate sperm-containing and egg-containing structures are produced bywater molds167
796173275Which of the following statements accurately describes animals?All animals are multicellular, all are heterotrophic, and all lack cell walls.168
796173276An animal's ability to move results from the interrelationship betweennervous tissue and muscle tissue169
796173277Scientists infer that the first invertebrates evolved fromcolonial protists170
796173278Cephalization is associated withbilaterally symmetrical animals171
796173279A body cavity aids in an animal's movement byproviding a firm structure against which muscles can contract.172
796173280In a closed circulatory system,blood circulates through the body in tubular vessels.173
796173281A gut is adigestive tract that runs through the body.174
796173282A hermaphrodite is an organism thatproduces both male and female gametes.175
796173283The moist skin of an amphibian funtions asa respiratory organ.176
796173284Development of zygotes outside the body of the female paretn is a charecteristic ofmany fishes, amphibians, reptiles, and birds.177
796173285Invertebrates are animals that lacka backbone178
796173286Adult sponges are sessile, which means that theyattach to a surface and do not move.179
796173287Choanocytes perform all of the following exceptdistributing nutirents throughout the rest of the body.180
796173288Sponges eliminate carbon dioxide and cellular wastes byallowing them to diffuse into the water that passes through the sponge.181
796173289After a sponge egg is fertilized, it develops into a(n)larva.182
796173290Cnidarians and ctenophores are more complec than sponges because, unlike sponges, they havetissues and organs183
796173291The structure that coordinate the complex activities of a cnidarian's body is thenerve net184
796173292An example of a cnidarian in the class Hydrozoa is aPortuguese man-of-war185
796173293Corals exist in a symbiotic relationship withalgae186
796173294Ctenophores move through the water bybeating their cilia187
796173295Asymmetryno symmetry188
796173296Bilateraltwo equal halves189
796173297Cephalizationdefinite anterior end190
796173298Coelombody cavity191
796173299Eukaryoticmembrane bound nucleus and organelles192
796173300Exoskeletonrigged outer covering that protects organs193
796173301Heterotrophicrely on other organisms for food194
796173302Multicellularmany cells195
796173303Pseudo"fake"; false196

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