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 correctly describes tjb8 fp bo(od1 qdn+g+ oe/be:8ayo-(9dr: pkg h 3fn5hv2yrylt9m r5q0 e effect of a decrease in the water concentration of the blood5yf3 lqvrrh5 2nym0t9?
A. ADH production is Decrease; Permeability of collecting duct is Increase; Urine concentration is Increase
B. ADH production is Decrease; Permeability of collecting duct is Decrease; Urine concentration is Increase
C. ADH production is Increase; Permeability of collecting duct is Increase; Urine concentration is Increase
D. ADH production is Increase; Permeability of collecting duct is Decrease; Urine concentration is Decrease
参考答案: C
本题详细解析:
Choice C is correct because when the water concentration of the blood decreases, ADH production increases. ADH increases the permeability of the collecting duct so that more water is reabsorbed, and this increases the concentration of urine. Choices A and B are incorrect because when the water concentration of the blood decreases, ADH production increases. The increase in ADH production increases the permeability of the collecting duct. Choice D is incorrect because increased ADH production increases the permeability of the collecting duct and increases the concentration of urine.
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