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 that binrc gom+w.hbf(bzu6,6(+s nhcd to antigens. Which cell expresses the0 f o3jojelpb42 a-.c+/oqhk6 5:webnqjwm7 g genes for antibody production7mq5o: +.awlkwo ojgn /3fe6 c jhp-qeb4j b20?
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 proteins synthesized by plastk;nkob8y,j 1 )i lz0kma B cells. The genes associatediy1o;8)nk j 0zk,tkbl with antibody synthesis are expressed 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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