<prompt> Which of the following acts as cofactor after it;s modification?Vit-CPantothenic acidBiotinZinc  <response>: The functions of pantothenic acid are exeed through coenzyme A or CoA A for acetylation. Coenzyme A is a central molecule involved in all the metabolisms carbohydrate, lipid and protein. Coenzyme A may be regarded as a coenzyme of metabolic integration since acetyl CoA is a central molecule for a wide variety of biochemical reactions ref Satyanarayana 4th ed page 149 