Pharmacology All India exam ba6fa2bf Which of the following enzymes, requires Biotin as the coenzyme? A Pyruvate Dehydrogenase B Pyruvate Kinase C Pyruvate Carboxylase D PEP Carboxy Kinase High-Yield Explanation Biotin is a coenzyme in carboxylation reactions, in which it serves as a carrier of activated carbon dioxide.