C-3 convease in alternate complement pathway ?: (A) C4b2a, (B) C3b, (C) C3bBb, (D) C3a
Answer is C. 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.