Biochemistry Vitamin B12 acts as a coenzyme to which one of the following enzymes? A Isocitrate dehydrogenase B Homocysteine methyl transferase C Glycogen synthase D G-6-P dehydrogenase 💡 Explanation Vitamin B12 acts as a coenzyme to which one of the following enzymes? ✓ Correct Answer: B. Homocysteine methyl transferase