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Biology 101 Test 1 Flashcards

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

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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

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