Multiple choice What is a major function of the B-vitamins? Cell differentiation Facilitate blood clotting Facilitate energy production Anti-oxidant Reveal answer Fill a bubble to check yourself C Correct answer Explanation B-vitamins act as coenzymes in many metabolic pathways that convert carbohydrates, proteins, and fats into usable cellular energy. Blood clotting is facilitated by vitamin K, while vitamins C and E act primarily as antioxidants.