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AP Bio Chapter 8+9: Cellular Respiration Flashcards

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1828911656Organic moleculesEnergy is stored in carbs fats proteins0
1828912781HeterotrophsEat organic molecules for food and digest them for energy; controlled release of energy/combustion1
1828913718Catabolism of glucoseBreaking down of glucose for atp2
1828914534CombustionMaking a lot of heat energy by burning fuels in one step3
1828915899RespirationMaking atp and heat by burnin fuels in steps4
1828918079How do we harvest energy from fuelsBonds are broken in big molecules to break them into smaller molecules and move the electrons fo one to another they bring energy5
1828922442How do we move electronsMove as part of h atom, when hydrogen atoms are moved the electrons move with them because they are attracted to the H+ ions6
1828923928OxidationAdding O removing H Loss of electrons Releases energy; less free energy Exergonic7
1828924176ExergonicRelease of energy8
1828925286EndergonicAbsorption of energy9
1828926071ReductionRemoving O adding H gain of electrons Stores energy; more free energy10
1828927172Electrons carriersNADH and FADH2 move electrons by moving around h atoms11
1828928137Aerobic steps1.glycolysis 2.fermentation12
1828931133Aerobic steps1. Glycolysis 2. Pyruvate oxidation 3.krebs cycle 4. ETC13
1828933963GlycolysisSubstrate level phosphorylation; makes 2 pyruvate, 2 ATP and 2NADH + H+14
1828935772Substrate phosphorylationThe phosphate comes from the environment or from the substrate (pep)15
1828937163Oxidative phosphorylationATP synthase makes atp by adjoining a phosphate to ADP16
1828940073Alcohol fermentation2 pyruvate changes to 2 ethanol, 2 nad+, and 2 CO2 Not reversable Bacteria Yeast17
1828942713Lactic acid fermentation2 pyruvate changes to 2 lactic acid and makes 2 nad+ Reversable by liver Animals Some fungi18
1828946062Pyruvate oxidationYields a 2 carbon sugar, NADH, CO2, and ACetyl coA19
1828949254Krebs cycleIn mitochondria, Yields: 2CO2, 2NADH, 2FADH2, 2 ATP, and 1 glucose per 2 turns Reduction of electron carriers20
1828953308electron transport chainYields most ATP from oxidative phosphorylation in ATP Synthase enzyme that puts a phosphate with ADP and the h+ ions diffuse thru down CG to conformational change the enzyme21
1828957711Why is oxygen so importantIf creates the electron negativity which attracts the electrons and pulls them thru the chain to be the final acceptor at the end to crest H2O and h atoms noe have h+ that is being diffused Into the intermembranal space22
1828961958PhosphofructokinaseCan be inhibited by ATP and citrate, activated by amp. Amp is like ATP but ATP is used as an inhibitor so that the cycle will halt ATP production until necessary so nothing is being wasted and only energy needed is made; negative feedback; and then amp will start it when it needs more ATP23
1828962403EnergyThe ability to make change or do work24
1828963607Kinetic energyRelative motion of objects25
1828964827Heat energyRandom movement of molecules (quickly) associated with Kinetic energy26
1828967385Chemical energyPotential energy available for use in chemical reactions27
1828967987ThermodynamicsStudy of energy transformations that occur in a collection of matter28
1828968940First law of thermodynamicsThe energy of the universe is constant energy can be transferred and transformed not created or destroyed29
1828971842Second law of thermodynamicsEvery energy transformation increases entropy, energy not available for work , randomness, in the universe30
1828974395Free energyEnergy available for other uses from electrons etc.31
1828976923How is work done by ATPChemical> the staring of endergonic reactions, synthesis of polymers to monomers Transport> pumping of substances across membrane agains direction of spontaneous movement Mechanical> contraction of muscles beating of cilia etc32
1828977885Coupled reactions and ATPOne reaction is ATP becoming ATP using its energy to bind ADP to a P and the other reaction uses the energy from ATP hydrolysis to drive its reaction33
1828984062In cell respiration what is oxidized what is reducedGlucose oxidized, oxygen reduced34
1828988307CytochromesElectron carrier proteins35
1828990087Facultative anaerobesOrganisms that can survive on the ATP made by fermentation or anaerobic respiration36
1828995564Who do fats provide twice and many calories as sugarsThey get broken down into glycerol and fatty acids and thru beta oxidation can be broken down further into molecules that drive cellular respiration (fatty acid>2 ACetyl coA)37

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