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: Microbiology
[{'content': 'C-3 convease in alternate complement pathway ? \nSelect and explain. \nA. C4b2a, B. C3b, C. C3bBb, D. C3a', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., C3bBb . The central process in the complement cascade (both in classical and alternative pathway) is the activation of C3 by C3-convease. . In classical pathway C3-convease is C4b2a and in alternative pathway C3-convease is C3bBb.", 'role': 'assistant'}]