In adaptive immunity, the process of complement fixation is activated by:
A)foreign antigens alone
B)macrophages alone
C)antigen-antibody complexes
D)macrophages and plasma cells

Question

Quizplus · Accepted Answer

Complement fixation is activated by the formation of antigen-antibody complexes. These complexes activate the complement system, which leads to the destruction of the foreign antigen.

In Adaptive Immunity, the Process of Complement Fixation Is Activated