Which component is part of cell-mediated immunity?

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Multiple Choice

Which component is part of cell-mediated immunity?

Explanation:
Cell-mediated immunity relies on T lymphocytes to recognize and respond to infected or abnormal cells. These T cells act directly or by coordinating other immune cells rather than by producing antibodies. Cytotoxic T cells (CD8+) destroy infected cells presenting foreign antigens on MHC class I, while helper T cells (CD4+) secrete cytokines to activate various immune players, including macrophages and, when needed, B cells. This is different from humoral immunity, which uses B cells and antibodies floating in body fluids. Complement proteins belong to other immune pathways and aren’t part of cell-mediated immunity.

Cell-mediated immunity relies on T lymphocytes to recognize and respond to infected or abnormal cells. These T cells act directly or by coordinating other immune cells rather than by producing antibodies. Cytotoxic T cells (CD8+) destroy infected cells presenting foreign antigens on MHC class I, while helper T cells (CD4+) secrete cytokines to activate various immune players, including macrophages and, when needed, B cells. This is different from humoral immunity, which uses B cells and antibodies floating in body fluids. Complement proteins belong to other immune pathways and aren’t part of cell-mediated immunity.

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