Helper T cells (specifically the TH1 and TH2 subclasses) produce lymphokines that enhance the function of T C cells, B cells, and macrophages by promoting their proliferation, differentiation, and activation. They also help to direct the immune response towards a specific type of antigen. Helper T cells do not themselves produce immunoglobulins, nor do they produce lymphokines that suppress immune activity.

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Helper T (T_H)cells

Question 15

Multiple Choice

Helper T (T_H) cells

A) respond to specific antigens.
B) enhance the function of T_C cells, B cells, and macrophages by producing lymphokines.
C) produce lymphokines that suppress immune activity.
D) produce immunoglobulins, which are the basis of antigen-specific reactions.

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