OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Immunoglobulins account for what percent of total plasma proteins?
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20
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15
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25
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30
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Explanation:
Detailed explanation-1: -[1] Immunoglobulins constitute about 20% of the protein in plasma. The immunogen or antigen reacts with a B-cell receptor (BCR) on the cell surface of B lymphocytes.
Detailed explanation-2: -Fibrinogen comprises 7% of blood proteins; conversion of fibrinogen to insoluble fibrin is essential for blood clotting. The remainder of the plasma proteins (1%) are regulatory proteins, such as enzymes, proenzymes, and hormones. All blood proteins are synthesized in liver except for the gamma globulins.
Detailed explanation-3: -IgG is the most abundant antibody isotype in the blood (plasma), accounting for 70-75% of human immunoglobulins (antibodies).
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