A nurse is reviewing the immune system with a group of nursing students. One student asks about the difference between cell-mediated immunity and humoral immunity. What should the nurse reply?
a. "Humoral immunity does not involve helper T cells in the immune response."
b. "Humoral immunity does not have a role in hypersensitivity reactions."
c. "Humoral immunity requires cytolytic T cells that attack antigens directly."
d. "Humoral immunity uses cells produced by B lymphocytes in the immune re-sponse."
D
Humoral immunity refers to immunity mediated by antibodies, which are produced by B lym-phocytes. Helper T cells have an essential role in antibody production by B cells. The antibody immunoglobulin E plays a role in hypersensitivity reactions. Cytolytic T cells do not produce antibodies; they are key players in cellular immunity.
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Convert 2.12 to a percent: __________
Fill in the blank(s) with correct word
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