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- Which of the following is true of the ATP Synthase in the mitochondria? a It is an enzyme. b It can catalyze either phosphorylation of ADP or dephosphorylation of ATP. c It is a proton transporter. d All of the aboveWhich of the following statements is most correct? The electron transport chain - A: generates a pH gradient that reduces O2 to H2O B: generates a proton gradient across the outer mito membrane C: generates a proton gradient across the inner mito membrane D: uses the energy stored in high energy electron carriers to synthesize ATP E: establishes a membrane potential across the outer mito membraneDuring cellular respiration, which of the following diffuses through ATP synthase? A)Phosphates B)Electrons C)Carbon dioxide (CO2) D)Protons (H+ ions) E)ATP 15
- Which of the following statements is TRUE of the electron transport chain (ETC)? A. The movement of electrons down the ETC drives the formation of a proton (H+) gradient. B. The movement of H+ ions through ATP synthase drives the transfer of electrons down the ETC. C. The movement of electrons down the ETC drives the movement of ADP and phosphate through ATP synthase. D. The movement of H+ ions across the inner membrane of the mitochondria drives the transfer of electrons down the ETC.Compared to NADH, NAD is a ____ molecule. If the Na/K pump stopped working, there would be an immediate and temporary net____ in cellular ATP . Select one: a. Oxidized, decrease b. Oxidized, increase c. Reduced, decrease d. Reduced, increaseWhich of the following statements describes the end step for the electron transport chain? A. H+ ions flow down the gradient to generate ATP B. electrons are transferred to NADH and FADH2 for chemiosmosis C. electrons are transferred to oxygen, causing it to split and take up H+ ions, which form water D. H+ are pumped across the inner membrane of mitochondria to establish an electrochemical gradient
- The majority of ATP synthesis occurs: Select one: a. During oxidative phosphorylation b. Anaerobic glycolysis c. All of these d. In the cytoplasmWhich of the following processes does not occur inside an organelle? Group of answer choices A. P680 B. glycolysis C. pyruvate oxidation D. Krebs cycle E. electron transport chainthe concentrated charge in the intermembrane space leaves through a. the H+ pumps b. ATP synthasec. the outer membraned. the Krebs cyclee. membrane pores
- Which of the following molecules would not be able to power an electron transport chain? Group of answer choices a)NADH b)A molecule that donates electrons c)ATP d)A molecule that donates hydrogen atoms e)FADH2Which of the following can occur within a cell in the absence of oxygen?a. glycolysisb. lactate productionc. citric acid cycled. electron transport systeme. both (a) and (b)During the aerobic cellular respiration, where do ATP molecules form? a. Cytosol only b. Cytosol and mitochondria only c. Cytosol, mitochondria and ribosomes only d. Mitochondrial matrix and inner mitochondrial membrane only