A cytokine released by macrophages that can stimulate helper T cells is
A) interleukin-1.
B) interleukin-2.
C) MHC class I.
D) MHC class II.
E) immunoglobulin.

Question

Quizplus · Accepted Answer

Interleukin-1 is a cytokine released by macrophages that can stimulate helper T cells. Interleukin-2 is released by activated T cells and stimulates T cell proliferation. MHC class I and II are molecules that present antigens to T cells. Immunoglobulin is not a cytokine, but rather an antibody produced by B cells.

A Cytokine Released by Macrophages That Can Stimulate Helper T