Which one of the following is a major component in activation of the complement alternative pathway:: (A) C1, (B) C2, (C) C3, (D) C4
Answer is C. - Alternate complement pathway Activators factor- Cobra venom , Properidin ,nephritic - C3b , Bb - C3 convease of alternate complement pathway - C5 - C9 is MAC (membrane attack complex) - C1,4,2 are not consumed in the alternate complement pathway