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    Question

    Which of the following statements about antibodies is

    correct?
    A They are produced by T-cells. Correct Answer Incorrect Answer
    B They are specific to antigens. Correct Answer Incorrect Answer
    C They are synthesized in the bone marrow. Correct Answer Incorrect Answer
    D They act as enzymes in metabolic reactions. Correct Answer Incorrect Answer

    Solution

    (2) Correct – Antibodies are highly specific to the antigens they bind to, helping the immune system neutralize pathogens.  (1) Antibodies are produced by B-cells, not T-cells. B-cells differentiate into plasma cells, which then secrete antibodies. (3) While B-cells are formed in the bone marrow, antibody production mainly occurs after their differentiation into plasma cells. (4) Antibodies do not function as enzymes in metabolic reactions; they mainly neutralize pathogens and mark them for destruction.

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