Home » Which of the enzyme participate as a coenzyme when pyruvate is converted to oxaloacetate? Enzymology MCQs Which of the enzyme participate as a coenzyme when pyruvate is converted to oxaloacetate? January 22, 2022 2 Views Q. Which of the enzyme participate as a coenzyme when pyruvate is converted to oxaloacetate? A. biotin B. NAD C. ATP++ D. NAD Answer: biotin