THE HUMAN IMMUNE SYSTEM
TRANSFUSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A protein on the surface of a red blood cell
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A type of red blood cell
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A protein that binds to foreign molecules, signaling the immune system to attack
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Detailed explanation-1: -Red blood cell (RBC) blood group antigens are polymorphic, inherited, carbohydrate or protein structures located on the extracellular surface of the RBC membrane. They contribute to the architecture of the RBC membrane, and their individual function(s) are being slowly revealed.
Detailed explanation-2: -The surface of the human red blood cell is dominated by a small number of abundant blood group active proteins. The major proteins are the anion transport protein (band 3) which has AB(H) activity, and Glycophorin A which has MN activity.
Detailed explanation-3: -An antigen is any foreign substance that can elicit an immune response in the body (eg, antibody production) and is bound by the specific antibodies produced against it by the immune system. Antigens generally have high molecular weight and are commonly proteins or polysaccharides.
Detailed explanation-4: -Rh factor is an inherited protein found on the surface of red blood cells. If your blood has the protein, you’re Rh positive. If your blood doesn’t have the protein, you’re Rh negative.