Match the coenzyme form of a vitamin with an enzyme and significant function.
-prolyl-4-hydroxylase

Question

Quizplus · Accepted Answer

Prolyl-4-hydroxylase uses vitamin C in its coenzyme form to add a hydroxyl group to proline residues in newly formed collagen, providing stability and rigidity to the structure.

Answer: B
 Pyruvate dehydrogenase complex uses thiamine pyrophosphate (TPP) as a coenzyme, which is derived from vitamin B1. It is important for the conversion of pyruvate to acetyl-CoA, a key step in carbohydrate catabolism.

Answer: C
 Glutathione reductase uses flavin adenine dinucleotide (FAD) in its coenzyme form, which is derived from riboflavin (vitamin B2). This enzyme helps maintain the antioxidant integrity of red blood cells and is a sensitive measure of riboflavin status.

Answer: E
 Acetyl-CoA carboxylase uses biotin as a coenzyme, derived from vitamin B7. It is important for the carboxylation of acetyl-CoA to form malonyl-CoA, a key step in fatty acid synthesis.

Match the Coenzyme Form of a Vitamin with an Enzyme