This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'Major function of Vitamin E in the body ? \nSelect and explain. \nA. Regulation of energy metabolism, B. Carboxylation reactio, C. Blood clotting, D. Protection of biological membrane from free radical damage', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Protection of biological membrane from free radical damage The most impoant function of vitamin E in human beings is to act as an anti-oxidant. It prevents the oxidation of other antioxidants, .e.g, carotenes, vitamin A and vitamin C. Vitamin E is the lipid-soluble antixodant in cell membranes and plasma lipoproteins. The main function of vitamin E is as a chain-breaking, free radical-trapping antioxidant in cell membranes and plasma lipoproteins by reacting with lipid peroxide radicals formed by peroxidation of polyunsatured fatty acid. Vitamin E prevents rancidity of fats due to its antioxidant action.", 'role': 'assistant'}]