本题目来源于试卷: Continuity and Change D.9 Homeostasis，类别为 IB生物学
[单选题]
Which row is correct for gluceudl cmufj)tg6 , ;7x,gzt4 p8 bu7:lxagon?
A. Stimulated by: High blood glucose concentration; Secreted by:Beta cells
B. Stimulated by: High blood glucose concentration; Secreted by:Alpha cells
C. Stimulated by: Low blood glucose concentration;Secreted by:Beta cells
D. Stimulated by: Low blood glucose concentration;Secreted by:Alpha cells
参考答案: D
本题详细解析:
Choice D is correct because low blood glucose concentration is detected by the alpha cells in the pancreas and they respond by releasing glucagon. Choice A is incorrect because high blood concentration does not cause the secretion of glucagon and it is not secreted by beta cells. Choice B is incorrect because high blood concentration does not cause the secretion of glucagon, it causes the release of insulin. Choice C is incorrect because glucagon is not secreted by beta cells.
| 
