Phagocytosis of microbes by macrophages is enhanced by ________.
I. the binding of antibodies to the surface of microbes
II. antibody-mediated agglutination of microbes
III. the release of cytokines by activated B cells
A) only I and II
B) only II and III
C) only I and III
D) I, II, and, III

Question

Quizplus · Accepted Answer

The binding of antibodies to the surface of microbes (opsonization) and antibody-mediated agglutination both enhance phagocytosis by making microbes more recognizable and easier to engulf by macrophages. Cytokines released by B cells do not directly enhance phagocytosis.

Phagocytosis of Microbes by Macrophages Is Enhanced by ________