Vitamin related to coenzyme A:

 # Vitamin related to coenzyme A:

A. Thiamine

B. Riboflavin

C. Cobalamine

D. Pantothenic acid

The correct answer is D. Pantothenic acid.

• Co-enzyme A is an important component of fatty acid synthase complex. The Co-enzyme A is a complex molecule containing B complex vitamin pantothenic acid and a molecule of beta mercaptoethanol amine. 

• The ACP (acyl carrier protein) also contains pantothenic acid. 

• The important CoA derivatives are: - Acetyl CoA - Succinyl CoA - HMG CoA - Acyl CoA. 

• The functions of Pantothenic acid are exerted through CoA (A for acetylation). It is a component of Pyruvate dehydrogenase, alpha-ketoglutarate dehydrogenase and Thiokinase. Besides the various functions through coenzyme A, pantothenic acid itself is a component of fatty acid synthase complex and is involved in the formation of fatty acids. 

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