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Multiple Choice

Which lymphocytes are involved in innate immunity, and which in adaptive immunity?

Natural killer cells are effector lymphocytes of the innate immune system. They respond quickly to virus-infected or abnormal cells without prior exposure and without needing antigen-specific receptors, which is a hallmark of innate defense. Adaptive immunity, on the other hand, relies on B and T lymphocytes that develop highly specific receptors for particular antigens. B cells provide a humoral response by producing antibodies, while T cells mediate cell-based responses and help coordinate the immune reaction. NK cells don’t require antigen presentation and don’t form memory in the same way as adaptive lymphocytes, so they belong to innate immunity, whereas B cells and T cells are components of adaptive immunity.

Natural killer cells are effector lymphocytes of the innate immune system. They respond quickly to virus-infected or abnormal cells without prior exposure and without needing antigen-specific receptors, which is a hallmark of innate defense. Adaptive immunity, on the other hand, relies on B and T lymphocytes that develop highly specific receptors for particular antigens. B cells provide a humoral response by producing antibodies, while T cells mediate cell-based responses and help coordinate the immune reaction. NK cells don’t require antigen presentation and don’t form memory in the same way as adaptive lymphocytes, so they belong to innate immunity, whereas B cells and T cells are components of adaptive immunity.