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]
Antibodies are proteins thatw o-ljp:r3jg5 0amia0 bind to anti jydclozbf8 z0y, k0p2xc./y)8w+7a m3 ninltgens. Which cell expresses the genes for antibody prodlp/ yzz2)ytxk,n0ja. y78cwm 38nocid0+ l bfuction?
A. Plasma B cells
B. Macrophages
C. Helper T cells
D. Red blood cells
参考答案: A
本题详细解析:
Choice A - Antibodies are globular protr2k qofwm fwhlm7ak5+2trj2w 7;,m,vc6hbd: eins synthesized by plasma B cells. The genes associated with antibody synthesis are expr7m+or h at2jkb 6fv;lww2,m5wd:27 h cmrqf,kessed in plasma B cells.
Choice B - Macrophages do not synthesize antibodies and therefore do not express these genes. Macrophages are large phagocytic cells and present antigens to helper T cells.
Choice C - Helper T cells do not synthesize antibodies. They stimulate B cells to divide by mitosis to produce plasma B cells and memory B cells.
Choice D - Red blood cells do not have a nucleus and therefore do not have the genes for antibody synthesis.
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