Pus is formed by the dead _____________cells.
Correct answer: C. White Blood Cells
- A. RBCs
- B. Platelets
- C. White Blood Cells
- D. Hemoglobin
Explanation
Pus contains dead and living white blood cells, destroyed microbes and tissue debris accumulated during an inflammatory response. Students may choose red blood cells because they are abundant in blood, but RBCs transport oxygen and are not the main cells producing pus.
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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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