This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: TCA Cycle, Subject name: Biochemistry
[{'content': 'All of the following are enzymes of TCA cycle, EXCEPT \nSelect and explain. \nA. Aconitase, B. Fumarase, C. Malic enzyme, D. Citrate synthase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Do not confuse Malate dehydrogenase and malic enzyme. Malic enzyme Malate dehydrogenase oxidative decarboxylation of malate to pyruvate. oxidation of malate to oxaloacetate.', 'role': 'assistant'}]