本题目来源于试卷: Interaction & Interdependence C.7 Defence Against Disease，类别为 IB生物学
[单选题]
In blood donation, an acute hewp.6s ) k5+llw( yfzzsmolytic transfusiibu3aqn9. s 4:r .vdnoon reaction occurs when red blood cells are attacked by the recipient’s immune system. Which property of red blood cells explains this response? 3dai4.rqbo:9 u .nsvn
A. .B cells recognize all red blood cells as foreign
B. Foreign red blood cells have surface antibodies that interact with T cells.
C. Foreign red blood cells have surface antigens that stimulate antibody production.
D. Antibodies are unable to bind to foreign red blood cells.
参考答案: C
本题详细解析:
An acute hemolytic reaction oc+em ,0l5nzj:bvb o h)fcurs because red blood cells contain certain antigens on their surface. If the antigens on the donated red blood cells differ from the antigens present in the recipient’s blood cells (for example, if an individual with Type A blood receives a Type B blood donation), thevo0h +lnb,)jzbm: e5 f donor’s immune system will recognise those red blood cells as foreign.
B cells do not recognise all red blood cells as foreign (Choice A). B cells only recognize red blood cells that have antigens different from those already in the body. Red blood cells have surface antigens, not surface antibodies (Choice B). Antibodies bind to the antigens on foreign red blood cells (Choice D).
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