试题与答案

关于肾小管的分泌,下列叙述中哪项是错误的() A.NH3是通过主动转运而进入小管液的

题型:单项选择题

题目:

关于肾小管的分泌,下列叙述中哪项是错误的()

A.NH3是通过主动转运而进入小管液的

B.NH3与小管液中的H+结合,生成NH4+

C.NH4+与小管液中强酸盐(如NaCl)中的Cl-结合,生成酸性铵盐(NH4Cl),起到排酸的作用

D.强酸盐中的Na+与H+交换,而后与一起转运回血,起到保碱的作用

E.NH3的分泌对维持酸碱平衡起重要作用

答案:

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