Which of the following vitamins is needed for the synthesis of a cofactor required for the conversion of succinate to fumarate?
A) lipoic acid
B) niacin
C) pantothenic acid
D) riboflavin
E) thiamine

Question

Quizplus · Accepted Answer

Riboflavin is needed for the synthesis of FAD (flavin adenine dinucleotide), which is a cofactor for the enzyme succinate dehydrogenase that catalyzes the conversion of succinate to fumarate in the Krebs cycle. The conversion of succinate to fumarate is catalyzed by the enzyme succinate dehydrogenase. This enzyme requires FAD, derived from riboflavin, as a cofactor for the reaction.

Which of the Following Vitamins Is Needed for the Synthesis