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AP Bio CH.8 Flashcards

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10806778473catabolic pathwaybreak molecules and release energy0
10806788251anabolic pathwaymake molecules and absorb energy1
108068519061st law of thermodynamicsEnergy cannot be created or destroyed2
108068576532nd law of thermodynamicsEvery energy transfer or transformation increases the entropy of the universe.3
10806861416delta Sentropy (disorder)4
10806865029+delta Sdisorder5
10806867690-delta Sorder6
10806879057Delta G (Gibbs Free Energy)tells how spontaneous rxn will be7
10806929198Delta Hchange in enthalpy8
10806931923Enthalpytotal energy of a system9
10806938451+Delta Hendothermic-energy absorbed (cold)10
10806953783-Delta Hexothermic-energy released (heat)11
10807019183spontaneous v non-spontaneous rxnsspontaneous: Delta G < 0, Delta S > 0 non-spontaneous: Delta G > 0, Delta S < 012
10812124468-Delta G isspontaneous, exergonic, energy is released to surroundings13
10812131831+delta Gnon-spontaneous, endergonic, energy is absorbed from surroundings14
10812138268delta G of exergonic15
10812152649Delta G of endergonic reactions16
108121605673 main types of work a cell doeschemical, transport, mechanical17
10812162362chemicalpushes non-spontaneous rxns to occur18
10812171834transportpumping out substances across the membrane19
10812182229mechanicalmore structures to accomplish tasks20
10812187592ATPadenosine triphosphate21
10812190963What makes up ATP3 phosphate groups, ribose, and adenine22
10812197004bonds broken with......releases energyhydrolysis23
10812202760_______+____________= ATPADP+Pi24
10812208664activation energyenergy needed to start a reaction25
10812216667Substratereactant enzyme acts on, binds to active site26
10812229036bonds that hold enzyme in active sitehydrogen, ionic27
10812243639cofactorsnonprotein enzyme helpers28
10812253538inhibitors bind covalently to enzyme and areirreversible29
10812319652competitive inhibitioninhibitor binds to enzyme, reversible30
10812330734non-competitive inhibitioninhibitor binds to site other than active site, irreversible, alters shape of enzyme and prevents substrates from binding to active site31
10812341936allosteric regulationThe binding of a molecule to a protein that affects the function of the protein at a different site.32
10812348273coopertivitya type of allosteric activation in which a substrate can bind to the active site of a multisubunit enzyme33
10812844785hemoglobin examplethe binding of one substance to one of the active sites increases catalytic activity and increases affinity of other active sites for the substrates34
10812855096feedback inhibitionmetabolic pathway is switched off when a product of an enzyme binds to it, causing one pathway to stop35
10813000316heatspeeds up reaction, dentures proteins and kills cells36
10813005456When activator binds to site on enzyme.....stabilizes enzymes size37
10813007295When inhibitor binds to site.....stabilizes inactive form of enzyme, makes all active sites inactive38

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