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': 'The end product of one stage fermentation is \nSelect and explain. \nA. Formic acid, B. Pyruvate, C. Lactate, D. Ethanol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: All other guides have given ethanol as the answer to this question. Which is incorrect.\nOne stage fermentation here means fermentation of pyruvate in one stage.\nWhen pyruvate is formed, it can have several fates.\nUnder aerobic conditions, pyruvate enters the TCA cycle after conversion into acetyl CoA by PDH.\nThere are two fates for pyruvate under anaerobic metabolism:-', 'role': 'assistant'}]