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AP Biology Unit 2 Vocabulary Flashcards

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7371379306aquawater0
7371379307phageat1
7371383092amphidual2
7371384303porismall opening3
7371386083cotogether4
7371386990transacross5
7371388392genicproducing6
7371389507hyperexceeding7
7371390770hypolower8
7371392593tonustension9
7371394003pinodrink10
7371395285allodifferent11
7371396815anaup12
7371397777catadown13
7371407699facilitated diffusiondiffusion through transport proteins in the plasma membrane14
7371408570diffusionpassive movement of molecules from an area of high concentration to an area of low concentration15
7371411917osmosisdiffusion of water across a selectively permeable membrane16
7371424452concentration gradienta region along which the density of a chemical substance increases or decreases17
7371426767fluid mosaic modela plasma membrane is a mosaic of protein molecules drifting in a fluid phospholipid bilayer18
7371431500first law of thermodynamicsenergy can be transferred or transformed, but it cannot be created or destroyed19
7371492912second law of thermodynamicsevery energy transfer or transformation increases the entropy (disorder) of the universe (transformation of usable energy to heat)20
7371494552liganda molecule that binds specifically to another molecule, usually a larger one21
7371496791catabolic pathwaya metabolic pathway that releases energy by breaking down complex molecules into smaller ones22
7371498439anabolic pathwaya metabolic pathway that consumes energy to synthesize a complex molecule from simpler molecules23
7371503078tonicitythe ability of a solution surrounding a cell to cause that cell to gain or lose water24
7371504308isotonica solution that causes no net movement of water into or out of a cell25
7371506812hypertonica solution that will cause a cell to lose water26
7371508406hypotonica solution that will cause a cell to take up water27
7371510313plasmolysiswhen a cell shrinks in hypertonic solution28
7371512107cytolysiswhen a cell bursts in a hypotonic solution29
7371513643exergonic reactiona spontaneous chemical reaction that releases free energy30
7371524134endergonic reactiona nonspontaneous chemical reaction that absorbs free energy31
7371525154phosphorylationthe addition of a phosphate group (ADP is phosphorylated into ATP)32
7371526433activation energythe amount of energy that reactants must absorb before a chemical reaction will start33
7371665151substrate enters active site of enzyme34
7371670959enzyme/ substrate complex forms35
7371673714substrate is converted to productsimage 336
7371694374products leave the active site of the enzymepicture 537
7371750556exocytosismoving molecules out of the cell through the fusion of vesicles with the plasma membrane38
7371752513endocytosisthe uptake of molecules through the formation of vesicles from the plasma membrane39
7371765449phagocytosisendocytosis involving large particles or molecules40
7371769062pinocytosisendocytosis involving fluid with dissolved solutes41
7371770684enthalpythe total heat in a system42
7371770719entropya measure of disorder43
7371775115allosteric regulationthe binding of a regulatory molecule to a protein at one site that affects the function of a protein at another site44
7371776993feedback inhibition/loopa method of metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme in that pathway45
7371782542glycoproteinprotein with carbohydrate attached46
7371794691glycoprotein47
7371797598glycolipidlipid with carbohydrate attached48
7371799165glycolipid49
7371826510peripheral membrane proteinblue thing?50
7371834921integral membrane proteinyellow things?51
7371839546cytoskeletal filamentswavy things outside membrane52
7371854756cholesterolyellow things?53
7371858731protein channelpurple thing?54
7371864637phospholipid bilayer55
7371872304sodium-potassium pumptransport protein that actively transports sodium out of the cell and potassium into the cell56
7371874005electrogenic pumpactive transport protein that generates voltage across a membrane while pumping ions57
7371875883proton pumpactive transport protein that uses ATP to move hydrogen ions out of a cell against the concentration gradient58
7371878938cotransportcoupling of the "downhill" diffusion of one substance to the "uphill" transport of another against its concentration gradient59
7371880788aquaporinschannel protein that is used in osmosis60
7371882609membrane potentialdifference in electrical charge across a cell's plasma membrane due to the differential distribution of ions61
7441910991turgor pressurepressure of water on the plasma membrane in plant cells62
7441929078active transportfrom low concentration to high concentration, opposite concentration gradient, requires energy63
7441933129passive transportmovement of ions and other atomic or molecular substances across cell membranes without need of energy input64
7668102507aeroair65
7668105937annot66
7668108631autoself67
7668108632chemichemical68
7668110458chlorogreen69
7668112324heteroother70
7668112325mesomiddle71
7668114014photolight72
7668114015phyllleaf73
7668116263trophfood74
7668119352fermentationprocess of breaking down glucose (through glycolysis) into ethyl alcohol or lactic acid; produces limited ATP due to the lack of oxygen75
7668121107aerobic respirationcatabolic pathway where glucose is broken down completely into carbon dioxide and water in the presence of oxygen; produces 30-32 ATP76
7668124189redox reactionschemical reaction involving the transfer of electrons from one reactant to another77
7668126366chemiosmosisusing a hydrogen ion gradient to drive the production of ATP78
7668130238facultative anaerobesorganism that produces ATP through aerobic respiration, and switches to fermentation when oxygen is not present79
7668134373obligate anaerobesorganisms that only carry out fermentation; some may be poisoned by the presence of oxygen80
7668136223mesophyllleaf cells specialized for photosynthesis81
7668147800stomatamicroscopic pore surrounded by guard cells on the underside of leaves and stems; used in gas exchange82
7668149430chlorophylla green pigment found in membranes within chloroplasts of plants and algae, and in the membranes of some prokaryotes83
7668151578carbon fixationincorporation of carbon dioxide into an organic compound; done by autotrophs84
7668153228carotenoidsan accessory pigment (yellow or orange) that absorbs light of different wavelengths that chlorophyll cannot85
7668158108photosystemlight capturing unit in the thylakoid that contains chlorophyll in its reaction center86
7668162905cristaeinfolding of the inner membrane of the mitochondrion; where oxidative phosphorylation takes place87
7668166790matrixspace inside the inner membrane; where the citric acid cycle takes place88
7668166791stromadense fluid inside the chloroplast surrounding the thylakoids; where the light independent reactions take place89
7668170239thylakoidflattened membrane stack inside a chloroplast; where the light dependent reactions take place, including photophosphorylation90
7668173971intermembrane spacesmall space to quickly accumulate protons (C)91
7668186015inner membranecontains ETC and ATP synthase for oxidative phosphorylation (B)92
7668200548matrix of a mitochondriahas appropriate enzymes and a suitable pH for the krebs cycle (blue)93
7668217498cristaehighly folded so as to increase SA:Volume ratio94
7668238145outer membrane of a mitochondriacontains transport proteins for shuttling pyruvates in mitochondrion95
7668256812double membraneevidence for endosymbiosis, independent origin96
7668276499stromahas appropriate enzymes and a suitable pH for the Calvin Cycle97
7668288349thylakoidhas ETC and ATP synthase for phosphorylation98
7668288350granumflat membrane sacs increase SA:Volume ratio and small internal volumes quickly accumulate ions99
7668290812lamellaconnects and separates thylakoid stacks (grana)100
7668335736oxidationlosses electrons, becomes more positive, loses H or gains O, NADH to NAD+, H2) to O2, photophosphorylation101
7668354364reductiongains electrons, becomes less positive, gains H or loses O, NAD+ to NADH, O2 to H2O, oxidative phosphorylation102
7668373443oxidationcomplete or partial loss of electrons from a substance in a redox reaction103
7668373444reductioncomplete or partial transfer of electrons to a substance in a redox reaction104
7668379405oxidative phosphorylationthe production of ATP using energy from the redox reactions of an electron transport chain coupled with chemiosmosis105
7668382405substrate-level phosphorylationdirect transfer of a phosphate group from an intermediate substrate to ADP106
7668384829photophosphorylationprocess of generating ATP from ADP and phosphate during the light reactions of photosynthsis107

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