The complement pathway that is activated by binding of C3b to cell surfaces is the
A) classical pathway.
B) alternate pathway.
C) C3 pathway.
D) mucociliary pathway.
E) All of the answer choices are correct.

Question

Quizplus · Accepted Answer

The complement pathway that is activated by binding of C3b to cell surfaces is the alternate pathway. The classical pathway is activated by antibodies bound to the surface of the pathogen, while the C3 pathway and mucociliary pathway do not involve C3b binding. Therefore, the best choice is B.

The Complement Pathway That Is Activated by Binding of C3b