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': 'Which of the following enzyme of TCA cycle is analogous to Pyruvate dehydrogenase complex? \nSelect and explain. \nA. Isocitrate dehydrogenase, B. Alpha ketoglutarate dehydrogenase, C. Malate dehydrogenase, D. Succinate dehydrogenase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Alpha ketoglutarate dehydrogenase catalyses an oxidative decarboxylation reaction similar to that of pyruvate dehydrogenase. uses the same coenzymes as the PDH complex (their E3 components are identical). Like PDH complex, its E2 is inhibited by arsenic.', 'role': 'assistant'}]