The succinate dehydrogenase reaction is unusual for a dehydrogenase because it uses ________ as an electron acceptor (oxidizing agent)that is regenerated by ubiquinone.
A)ATP
B)NADP
C)Malonate
D)FAD

Question

Quizplus · Accepted Answer

The succinate dehydrogenase reaction uses flavin adenine dinucleotide (FAD) as an electron acceptor, which is an unusual feature for a dehydrogenase enzyme. The FAD is regenerated by ubiquinone as part of the electron transport chain. Choice A (ATP) and choice B (NADP) are not correct because they are not involved in the succinate dehydrogenase reaction, and choice C (Malonate) is not correct because malonate is an inhibitor of the succinate dehydrogenase reaction.

The Succinate Dehydrogenase Reaction Is Unusual for a Dehydrogenase Because