Cells that kill cells that display foreign motifs on their surface are:
Correct answer: B. Cytotoxic T cells
- A. Platelets
- B. Cytotoxic T cells
- C. Antigens
- D. Red blood cell
Explanation
Cytotoxic T cells are a type of T lymphocyte that specifically targets and kills cells displaying foreign motifs on their surface. They play a crucial role in the immune response against infected or abnormal cells. Platelets, antigens, and red blood cells do not possess this specific function of directly killing cells with foreign motifs.
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About Specific Defense Mechanism
Specific defense mechanisms provide targeted immunity through B lymphocytes, T lymphocytes, antibodies and memory cells that recognize particular antigens. Questions cover humoral and cell mediated responses, clonal selection, primary and secondary immune responses, vaccination and passive immunity, while distinguishing adaptive defenses from the immediate, non specific innate response.
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