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AP Biology Cellular Respiration Vocabulary Flashcards

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6590183762cellular respiration∙the process of extracting energy from those carbohydrates, provide free energy ∙occurs in the *mitochondria*0
6590183763phosphorylation-energy + P + ADP →ATP -Examples: substrate level & oxidative1
6590183764substrate level phosphorylation∙a phosphate group *and* its associated energy are *transferred* to ADP to form ATP. ∙substrate molecule donates a high energy phosphate group Example: glycolysis (initial breakdown process of glucose)2
6590183765oxidative phosphorylation definition∙combination of ETC and chemiosmosis that are the main energy production of ATP in Cellular Respiration3
6590183766ETC diagram4
6590183767aerobic respirationWhen oxygen is available, cells generate ATP using this method 1) glycolysis 2) Krebs cycle (citric acid cycle) 3) oxidative phosphorylation5
6590183768anaerobic respiration∙When oxygen is *NOT* available, cells will generate ATP using this method 1) alcohol fermentation 2) lactic acid fermentation6
6590183769catabolism of moleculesMacromolecules are broken down to release energy. Proteins-Lipids-Carbohydrates7
6590183770glycolysisthe decomposition (lysis) of *glucose* (glyco) to *pyruvate* (or *pyruvate acid*) 1 glucose → 2 pyruvate, 2 NADH, and 2 net ATP molecules8
6590183771NADHa *coenzyme* that is an electron carrier when NAD⁺ combines with 2 energy rich e⁻ and H⁺9
6590183772Krebs Cycle/CAC Citric Acid∙details what happens to pyruvate, the end product of glycolysis -Occurs 2x since there are 2 pyruvate molecules formed by glycolysis -Produced (after 2 cycles): 6 NADH, 2 FADH₂, 2 ATP, 4 CO₂10
6590183773oxidative phosphorylation∙process of producing ATP from NADH & FADH₂. that pass along the electron transport chain11
6590183774electron transport chain def+pic∙consists of proteins that pass the electrons from NADH and FADH₂ from one carrier protein (i.e. *cytochromes*) to the next ∙Final e⁻ acceptor is *oxygen*12
6590183775cytochrome C∙a carrier protein which is so common among living organisms that its amino acid sequence is compared among species to assess genetic relatedness13
6590183776mitochondria∙cellular respiration takes place ∙inner membrane ∙matrix14
6590183777inner membrane∙double phospholipid bilayer, has convolutions called *cristae* ∙oxidative phosphorylation occurs here ∙ETC removes e⁻ from NADH & FADH₂ and transports H⁺ ions from the patrix to intermediate space15
6590183778matrix∙fluid material that fills the area inside the inner membrane. ∙Krebs cycle and conversion of pyruvate to acetyl CoA occur here16
6590183779ATP synthase∙a channel protein in the inner membrane, allows protons in the intermembrane compartment to flow back into the matrix to generate ATP17
6590183780chemiosmosisATP generation that occurs when energy is stored in the form of a *proton concentrating gradient* across a membrane using ATP synthase18
659018378130-32How many ATP molecules does cellular respiration produced? Write as __ -__19
6590183782alcohol fermentation∙pyruvate to acetaldehyde to ethanol ∙occurs in: plans, fungi (yeast), and bacteria20
6590183783anaerobic respiration objective∙replenish NAD⁺ so that glycolysis can proceed once again because in the absence of O₂, all the NAD⁺ is bottled up in NADH because oxidative phosphorylation cannot accept the e⁻ of NADH without oxygen.21
6590183784lactic acid fermentation∙A pyruvate is converted to lactate (or lactic acid); in the process, NADH gives up its e⁻ to from NAD⁺22

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