Which vitamins participate, in coenzyme form, in reactions of the tricarboxylic acid cycle?
A) pyridoxine and thiamine
B) niacin and ascorbic acid
C) riboflavin and niacin
D) pantothenic acid and folic acid
E) thiamine and biotin

Question

Quizplus · Accepted Answer

Riboflavin and niacin participate in the tricarboxylic acid cycle (TCA cycle or Krebs cycle) in their coenzyme forms as FAD (Flavin adenine dinucleotide) and NAD (Nicotinamide adenine dinucleotide), respectively, which are essential for the oxidation-reduction reactions within the cycle.

Which Vitamins Participate, in Coenzyme Form, in Reactions of the Tricarboxylic