Cellular immunity is mediated by:
a. B lymphocytes.
b. T lymphocytes.
c. immunoglobulins.
d. suppressor B cells.
B
Cellular immunity is mediated by the T lymphocyte. Humoral immunity is mediated by B lymphocytes and involves the formation of antibodies (immunoglobulins) in response to specific antigens that bind to their receptor sites. Suppressor T cells (not B cells) downgrade and suppress the humoral and cell-mediated responses.
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