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12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c. pyruvate dehydrogenase d、a-ketoglutarate dehydrogenase 13. Which of the reactions of the citric acid cycle requires FAD as a coenzyme? a. the conversion of isocitrate to a-ketoglutarate b. the conversion of citrate to isocitrate c. the conversion of succinate to fumarate d. the conversion of malate to oxaloacetate 14. Another name for Complex I in the electron transport chain is a. cytochrome c oxidase. b. NADH-CoQ oxidoreductase. c. cytochrome bei complex. d. succinate-CoQ oxidoreductase 15. Uncouplers are compounds that inhibit the phosphorylation of ADP a. by enhancing the proton gradient across the outer mitochondrial membrane. b. by enhancing the proton gradient across the inner mitochondrial membrane. c. because they are transmembrane proteins in the outer mitochondrial membrane. d. without affecting electron transport.
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12 C. C.H CH 2. CH 2. Sucei Suceindate bGITP λ Succ inyl-Con Synt hade enzy ne cedalyzes the a.bove. neaction (A) Peactims of ithe citmie acid Csele mequines FAD as a Coenzyme. t, tuis oxidalion Step, FRD me moxes Hevo hydmagen atoms from succinate, 1. Anohe name. for Complex. 1t in the electomom 15 Phosphonylatt on of ADP-(d) withou-affecting

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