Multiple Choice
How do cytokines function?
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21. The Immune System
Cell Communication: Cytokines
Multiple Choice
During presentation of APC-bound antigen, macrophages and dendritic cells secrete the cytokine _____, which activates T helper cells.
A
Interferon.
B
Interleukin-1.
C
Interleukin-2.
D
Histamine.
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