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13603825073Plant vs animal cellsPlant: central vacuole, chloroplasts, cell wall, plasmodesmata Animal: lysosomes, centrioles, flagella and cilia, extracellular matrix, desmosomes, tight & gap junctions0
13603840683____ are not part of the endomembrane systemchloroplasts and mitochondria1
13603845020Structure of mitochondriamatrix--> fluid filled space cristae--> inner membrane folded2
13603850618amyloplastsplastids that store starch3
13603850619chromoplastsplastid that stores pigments in fruits and flowers4
13603855810structure of cholroplastgrana: stacks of thylakoids thylakoid: sacs where ATP is made stroma: fluid filled space5
13603868602Smooth ER-metabolic processes -makes lipids -metabolizes carbs -detoxifies6
13603875506Rough ERmakes proteins for outer cell export7
13603879212golgi appartus-shipping and receiving cis: receiving trans: shipping8
13603885842lysosomes-not found in plant cells -kills cells -recycles materials -sac of hydrolytic enzymes9
13603896241peroxisomes-found in both animal and plant cells -breaks down fatty acids into sugars -detoxifies10
136039006823 fibers of cytoskeletonmicrotubules, microfilaments, intermediate filaments11
13603903636microtubules-thickest -cell motility and structure -made of tubulin -makes up cilia and flagella12
13603910129microfilaments-thinnest -cell shape -muscle contraction -cell division (cleavage furrow formation) -made of actin and myosin13
13603915407intermediate filaments-medium thickness -anchoring -maintenance of cell shape -made of keratin14
13603938153types of intercellular junctions-tight junctions -adherent junctions (aka desmosomes) -gap junctions -plasmodesmata (plants)15
13603942926tight junctions-Watertight seal between cells -Plasma membranes fused with a strip of proteins -Common between cells that line GI and bladder16
13603945517gap junctionsprovide cytoplasmic channels between adjacent animal cells communicating junctions17
13603950788desmosomesAnchoring junctions that prevent cells from being pulled apart18
13603950789plasmodesmatachannels through cell walls that connect the cytoplasms of adjacent cells19
13603962623Functions of inter membrane proteins-transport -enzymatic activity -signal transduction -cell-to-cell recognition -cell-to-cell attachments -attachment to cytoskeleton and extracellular matrix20
13608635252types of tranpsorter proteins-aquaporins -carrier proteins -electrogenic pump -cotransport21
13608642797passive transportdiffusion, osmosis, facilitated diffusion22
13608642833active transportpumps/carriers, vacuoles, endocytosis23
13608657639hypertonicHaving a higher concentration of solute than another solution.24
13608657640hypotonicHaving a lower concentration of solute than another solution25
13608663435structure of chromosome2 sister chromatids, each made with chromatin & containing genes, attached in the middle by a centromere26
13608665851kinetochoreA specialized region on the centromere that links each sister chromatid to the mitotic spindle.27
13608668520interphaseG1- growing S- replicates DNA G2- preps for div28
13608671961prophaseChromosomes become visable, nuclear envelop dissolves, spindle forms29
13608675164metaphaseChromosomes line up in the middle of the cell30
13608675165anaphasePhase of mitosis in which the chromosomes separate and move to opposite ends of the cell31
13608678046telophasethe final phase of cell division, between anaphase and interphase, in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.32
13608683004cytokinesis in animal cellscleavage furrow, actin and myosin pinch in cytoplasm33
13608685100cytokinesis in plant cellscell plate forms, middle lamella cements adjacent cells together34
13608689329anabolicA process in which large molecules are built from small molecules, consuming energy35
13608691190catabolicA process in which large molecules are broken down, releases energy36
13608693486Free Energy Changethe difference between the change in enthalpy and the product of the Kelvin temperature and the entropy change37
13608700071If deltaG is negativerxn is spontaneous system becomes more stable38
13608702169exergenicreleases energy39
13608702170endergenicreaction that needs/absorbs energy40
13608707819factors affecting enzyme functionenzyme concentration, substrate concentration, temperature, pH, salinity, activators, inhibitors41
13608710810as enzyme concentration increases--reaction rate increases42
13608713254as substrate concentration increasesRate of reaction increases43
13608713256as temperature increasesbonds in enzyme may denature44
13608720261as temperature decreasesmolecules move slower, enzyme less effective45
13608728919types of enzyme inhibitorscompetitive, noncompetitve, irreversible, feedback46
13608736180competitive inhibitionsubstance that resembles the normal substrate competes with the substrate for the active site47
13608739197noncompetitive inhibitorA substance that reduces the activity of an enzyme by binding to a location remote from the active site, changing its conformation so that it no longer binds to the substrate.48
13608741733irreversible inhibitionactive site is made unavailable for prolonged period of time or enzyme is permanently altered49
13608741735feedback inhibitionA metabolic pathway is switched off by the inhibitory binding of its end product to an enzyme that acts early in the pathway.50
13608747898oxidationsubstance loses electrons51
13608747899reductionsubstance gains electrons52
13608750335reducing agentelectron donor53
13608752652oxidizing agentelectron acceptor54
13608752653oxidation is....exergenic55
13608755245reduction is...endergenic56
13608757680energy is_____ when new bonds are formedreleased57
13608760145where ATP stores energyin the phosphate groups58
136087624993 steps of cellular respiration1. Glycolysis 2. Krebs Cycle 3. Electron Transport Chain59
13608762501glycolysis-occurs in cytoplasm -anaerobic reaction -breaks up one glucose into 2 atp and 2 pyruvic acids60
13617574407PhosphofructokinaseThe enzyme that catalyzes the phosphorylation of fructose-6-phosphate to form fructose-1-6-bisphosphate in the third step of glycolysis. This is the main regulatory step of glycolysis. PFK is feedback-inhibited by ATP.61
13617576890Krebs Cycle-occurs in matrix -completes oxidation of glucose to CO2 -turns 2x for each glucose molecule -acetyl coA combines w 4 carbon acid top form citric acid -produces 2 NADH, 2 FADH2, 2 ATP, 4 CO262
13617588967Electron Transport Chain-occurs in cristae -releases energy stored within H carriers to produce ATP -step 1: generating proton motive force -step 2: chemiosmosis and ATP synthase activity -step 3: oxygen acts as final electron acceptor and produces h2o63
13617622196chlorophyll bbroaden the spectrum used for photosynthesis64
13617626746carotenoidsabsorb excessive light that would damage chlorophyll65
13617630882chlorophyll aOnly pigment that can participate directly in the light reactions.66
13617633428photosystem IIcontains chlorophyll a67
13617633429photosystem Icontains chlorophyll b68
13617647318light dependent reactions-convert light energy from sun into ATP -takes place in thylakoid -1) excitation of photosystems by light energy -2) production of ATP via ETC -3) reduction of NADP+ and photolysis of water69
13617665248excited e- from __________ transferred to ETCphotosystem II70
13617672243excited e- from __________ used to reduce NADP+photosystem I71
13617675402photolysisIn the thylakoid membranes of a chloroplast during light-dependant reactions, two molecules of water are split to form oxygen, hydrogen ions, and electrons.72
13617677831e- lost from PSI replaced by....de-energized e- from PSII73
13617680853e- lost from PS II replaced by....e- reduced from H2O via photolysis74
13617685865Calvin Cycle-takes place in stroma -1) carbon fixation -2) reduction of GP -3) regeneration of RuBP75
13617716577carbon fixation-first step of Calvin Cycle -begins with 5 C called bisphosphate (RuBp) -Rubisco attaches CO2 to RuBp -6 C cmpd breaks into 2 3C cmpds called GP -single cycle involves 3 RuBp + 3 CO2 = 6 GP76
13630280269reduction of GP-second step of Calvin Cycle -GP converted into triose phosphate using NADPH and ATP -reduction by NADH transfers hydrogen atoms while hydrolysis of ATP provides energy -single cycle requires 6x NADPH and ATP77
13630289160regeneration of RuBp-third step of Calvin Cycle -of six TP produced, only ONE can be used to form 1/2 a sugar molecule -remaining 5 TP used to regenerate stocks of RuBp -regeneration of RuBp requires energy derived from hydrolysis of ATP78
13630302521Law of segregationDuring the formation of gametes, the traits carried on homologous chromosomes separate79
13630305242law of independent assortmentthe law that states that genes separate independently of one another in meiosis80
13630307729Di hybrid cross ratio9:3:3:181
13630309372incomplete dominanceblending of traits82
13630310872codominanceboth traits show83
13630310889multiple allelesthree or more forms of a gene that code for a single trait84
13630314665pleiotropyThe ability of a single gene to have multiple effects. ie cystic fibrosis85
13630317315epistasisone gene masks the expression of the other gene even though two separate genes control that one trait86
13630332627genomic imprintinga variation in phenotype depending on whether a trait is inherited from the mother or father -they are on autosomes87
13630341045extranuclear geneslocated in mitochondria and chloroplasts88
13630644236penetranceThe proportion of individuals with a particular genotype that show the expected phenotype.89
13630645745linked genesgenes on the same chromosome90
13630648611sex-linkagethe presence of a gene on a sex chromosome91
13631215312x-inactivationone of two X chromosomes is randomly inactivated and remains coiled as a Barr body92
13631218090gene mutationscaused by a change in DNA sequence93
13631220336chromosome mutationsobservable under light microscope. deletion of addition of part of or entire chromosome94
13631233226karyotypeA display of the chromosome pairs of a cell arranged by size and shape.95
13631237680deletionwhen a fragment lacking a centromere is lost during cell division96
13631246270inversionchromosomal fragment reattaches to its original chromosome but in reverse orientation97
13631252789translocationfragment of a chromosome becomes attached to a non homologous chromosome98
13631255467polyploidycell or organism has extra sets of chromosomes99
13631257630nondisjunctionError in meiosis in which homologous chromosomes fail to separate.100
13631294830aneuploidyany abnormal number of chromosomes101
13631294831trisomy3 copies of a chromosome102
13631297132trisomy 21Down syndrome103
13634819645Griffithdiscovered bacterial transformation through the transformation experiment104
13634823558Avery, Macleod and McCartypublished classic findings that Griffith's transformation factor is DNA; provided direct experimental evidence that DNA was genetic material105
13634873309Hershey and Chaseexperiments lent strong support to theory that DNA is the genetic material -tagged bacteriophages with radioactive isotopes 32-phosphorous and 35-sulfur that labeled the DNA and protein coat respectively -only P entered the bacterium, proving that DNA was infecting bacteria106
13634883597Rosalind Franklincarried out X-ray crystallography analysis of DNA that showed DNA to be a helix107
13634885716Watson and Crickcorrectly described double helix structure of DNA108
13634887381Meselson and Stahlproved that DNA replicates in a semiconservative fashion -cultured bacteria in heavy nitrogen medium and light nitrogen -resulting bacteria was midway in density between bacteria -demonstrated that the new bacteria contained DNA with one heavy strand and one light strand109
13641013087three domainsBacteria, Archaea, Eukarya110
13641019772germ layersThree main layers that form the various tissues and organs of an animal body. ectoderm, endoderm, and mesoderm111
13641021622ectodermthe outermost layer of cells or tissue of an embryo in early development, or the parts derived from this, which include the epidermis and nerve tissue.112
13641022730endodermthe inner germ layer that develops into the lining of the digestive and respiratory systems113
13641022731mesodermthe middle layer of an embryo in early development, between the endoderm and ectoderm. becomes blood and bones114
13641023436diploblasticonly having two cell layers115
13641024660Which two primitive animals only have two cell layers?Porifera Cnidarians116
13641024661mesogleaThe middle layer of a two-layered animal, like sponges or hydra, which holds the two layers together.117
13641026929bilateral animals are all...triploblastic118
13641026930phylogenyEvolutionary history of a species119
13641032709shared ancestral traita character that originated in an ancestor of the taxon120
13641033574shared derived traitcharacteristic found in more than one, but not all, descendant forms and not in the common ancestor121
13641037108Know how to create a simple cladogramyes122
13641078627Bacteria have only one type of...RNA polymerase123
13641079402Do Bacteria have introns?no,, only archaea and eukaryotes124
13641082537Only Bacteria have _________ in cell wallpeptidoglycan125
13641082538level of taxanomyDomain- 1.kingdom 2.phylum 3.class 4.order 5.family 6.genus 7.species126
13641090461characteristics of domain bacteria1.no membrane-enclosed organelles 2.peptidoglycan in cell wall 3.one type of RNA polymerase 4.no introns (non-coding regions of genes) 5.inhibited antibiotic sensitvity to streptomycin, chloramphenicol 6. all are prokaryotes127
13641093187characteristics of domain archaea1) unicellular 2) prokaryotic 3) includes extremophiles 4) introns present in some genes 5) no peptidoglycan128
13641095999characteristics of domain eukarya1) include kingdoms: protista, fungi, plants, and animals129
13641101501characteristics of kingdom protista1) includes widest variety of organisms 2) includes organisms that don't fit into fungi or plant kingdoms ie seaweeds and slime molds 3) includes heterotrophs and autotrophs 4) mobility by varied methods (amoeba- pseudopods; paramecium- cilia; euglena- flagella( 5) some carry out conjugation130
13641107832characteristics of kingdom fungi1) all are heterotrophs and eukaryotes 2) extracellular digestion, nutrients absorbed into body by diffusion 3) cell walls composed of chitin131
13641111757characteristics of kingdom plantae1) autotrophic eukaryotes 2) some do and some do not have vascular tissue132
13641115454characteristics of kingdom animalia1) heterotrophic, multicelluar eukaryotes 2) monophyletic 3) classified by anatomical features, DNA data, and embryonic dev133
13641118228monophyleticall animal lineages can be traced back to one common ancestor134
13641131226characteristics of phylum porifera1. the sponges--invertebrates 2. no symmetry at all 3. nerves are sessile 4. filter nutrients from water drawn into a central cavity called a spongocoel 5. diploblastic 6. have no true tissues or organs, although they do have different types of cells 7.evolved from the colonial organism, if a sponge is broken up, it will grow into more sponges. 8.reproduce asexually by fragmentation as well as sexually: are hermaphrodites135
13648625932characteristics of phylum cnidarians1.hydra and jellyfish 2.invertebrate 3.radial symmetry 4.body plan is the polyp (vase shaped) or the medusa (upside down bowl shaped) 5.Life cycle--some go through a planula larva (free-swimming) stage then go through two reproductive stages, asexually reproducing (polyp) and sexually reproducing (medusa) 6.two cell layers: ectoderm and endoderm connected by mesoglea 7.have a gastrovascular cavity where extracellular digestion occurs 8.also carry out intracellular digestion inside body cells, carried out in lysosomes 9.have no transport system because every cell is in contact with environment. 10. all members have stinging cells called cnidocytes136
13648628687platyhelminthes phylum characteristics1.flatworms including tapeworms 2.simplest animals with bilaterial symmetry, an anterior end, three distinct cell layers, and cephalization 3.have true tissues and organs 4.digestive cavity has only one openin g for both ingestion and egestion so food cannot be processed continuously 5.flatworms are acoelomate, they have no coelom; they have a solid body with no room for digestive or respiratory systems to circulate food molecules or oxygen; they have solved this problem in 2 ways --the body is very flat, which keeps the body cells in direct contact with oxygen in the environment --the digestive cavity is branched so that good can be spread to all regions of the body137
13648629437Nematoda characteristics1.roundworms 2.invertebrate 3.unsegmented worms with bilateral semmetry but little sensory apparatus 4.protostome pseudocoelomate 5.pseudocoelom transports nutrients, but there is inadequate room for a circulatory system 6.many are parisity, such as trichinella which causes trichinosis aquired form uncooked pork 7.one species, caenorhabditis elegans, is widely used as a model in studying the link between genes and development138
13648632095annelida phylum characteristics1.segmented worms 2. invertebrate 3.protostome coelomates with bilateral symmetry but little sensory apparatus 4.digestive tract is a tube within a tube consisting of crop, gizzar, and intestine 5.nephridia for excretion of nitrogenous waste, urea 6.closed circulatory system-heart consists of five pairs of aortic arches 7.blood contains hemoglobin and carries oxygen 8.diffusion of oxy and carbon dioxide through moist skin 9.are hermaphroditic, but do not self fertilize139
13648633121mollusca phylum characteristics1.squids, octopuses, slugs, clams, and snails 2.invertebrate 3.protostome coelomates 4.have a soft body often protected by a hard calcium-containing shell 5.have bilateral symmetry with three distinct body zones --head-foot, which contains sensory and motor organs --visceral mass, which contains the organs of digestion, excretion, and reporduction --mantle, a specialized tissue that surrounds the visceral mass and secretes the shell 6.radula, a movable, tooth bearing structure, acts like a tongue 7.open circulatory system with blood-filled spaces called hemocoels; lack capillaries 8.most have gills and nephridia140
13648634371arthropoda1.insects (grasshoppers), crustaceans (shrimp, crabs), and arachnids (spiders) 2.invertebrate 3.protosome coelomates 4.jointed appendages 5.segmented: head, thorax, abdomen 6.havign more sensory apparatus than the annelids gives them more speed and freedom of movement 7.chitinous exoskeleton protects the animal and aids in movement 8.malpighian tobules for removal of nitrogenous wastes, uric acid 9.air ducts called trachea bring air from environment into hemocoels 10. some have book lungs or book gills141
13648635503echinodermata1.sea stars, sea urchins 2.invertebrate 3.deuterostome 4.most are sessile or slow moving 5.bilateral symmetry as an embryo but reverts to the primitive radial symmetry as an adult, the radial anatomy is an adaptation to a sedentary lifestyle 6.water vascular system, which is a modified coelom, creates hydrostatic support for tube feet, the locomotive structures 7.reproduces sexually by eternal fertilization 8.also reproduce by fragmentation and regeneration 9. sea stars have an endoskeleton consisting of calcium plates, which grow with the body142
13648636077chordata1.fishes, amphibians, reptiles, birds, and mammals 2.vertebrate 3.deuterostome coelomates 4.have a notochord, a rod that extends the length of the body and serves as a flexible axis 5.dorsal, hollow nerve cord 6.tail aids in movement and balance 7.birds and mammals and endotherms and homeotherms, but all others are ectotherms143
13648722236the right side up in which DNA runs5 - 3144
13648722898purinesAdenine and Guanine, double ring structure145
13648723468Pyrimidinescytosine, thymine, uracil, triple hydrogen bonds146
13648736463steps of DNA replication1) helicase separates the DNA strands 2) SSB proteins prevent DNA from reanneling 3) primase creates RNA primer 4) DNA polymerase extends DNA strand from the primer 5) DNA polymerase I (RNase H) removes the primers 6) ligase joins the okazaki fragments of the lagging strand147
13648740216helicaseunzips DNA148
13648740217Telomoreslengths of repeating DNA; timekeepers for the cells - once used up the cell stops dividing149
13872811899cytochrome c150

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