Cell-Mediated Immunity is Directed By

Question

Cell-mediated immunity is directed by:
A) B cells, which secrete antibodies.
B) T cells, which secrete antibodies.
C) macrophages, which produce histamines.
D) B cells, which react with APCs.
E) T cells, which react with APCs.

Accepted Answer

Cell-mediated immunity is primarily directed by T cells, which interact with antigen-presenting cells (APCs) to initiate immune responses. This process does not involve the secretion of antibodies, which is a characteristic of humoral immunity mediated by B cells.