What is the role of helper T cells in the adaptive immune response?

a. Helper T cells directly kill infected host cells.
b. Helper T cells activate B cells and cytotoxic T lymphocytes to kill infected host cells.
c. Helper T cells phagocytize bacteria and viruses.
d. Helper T cells produce and secrete antibodies.


Ans: b. Helper T cells activate B cells and cytotoxic T lymphocytes to kill infected host cells.

Biology & Microbiology

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