Question

which of the following is the central molecule in complement pathway
a. c1
b.c2
c.c3b
d.c5​

Answer 1

c3b

Explanation:

Here they cleave C3 to generate large amounts of C3b, the main effector molecule of the complement system, and C3a, a peptide mediator of inflammation. The C3b molecules act as opsonins; they bind covalently to the pathogen and thereby target it for destruction by phagocytes equipped with receptors for C3b.