Multiple choice Which of the following functions is performed by biotin? Conversion of pyruvate to acetyl CoA Acts as a coenzyme for acetyl-CoA carboxylase Beta-oxidation of fatty acids Metabolism of nucleic acids Reveal answer Fill a bubble to check yourself B Correct answer Explanation Biotin is a critical coenzyme for acetyl CoA carboxylase, which is involved in the synthesis of fatty acids from acetate.