肾小管对重吸收的叙述错误的是() A.主要在近球小管重吸收 B.与的分泌有关

恬恬2019-12-17  19

问题 肾小管对重吸收的叙述错误的是()A.主要在近球小管重吸收B.与的分泌有关C.以的形式重吸收D.需碳酸酐酶的参与E.滞后于的重吸收

选项

答案E

解析肾小管对[img]/upload/tiku/6/1729776_1.latex[/img]重吸收机制:[img]/upload/tiku/6/1729776_1_1.latex[/img]与[img]/upload/tiku/6/1729776_1_2.latex[/img]交换分泌到管腔内的H+结合生成[img]/upload/tiku/6/1729776_1_3.latex[/img],[img]/upload/tiku/6/1729776_1_4.latex[/img]迅速分解为[img]/upload/tiku/6/1729776_1_5.latex[/img]和[img]/upload/tiku/6/1729776_1_6.latex[/img],[img]/upload/tiku/6/1729776_1_7.latex[/img]即扩散入上皮细胞,细胞内含有丰富的碳酸酐酶,在此酶的作用下,[img]/upload/tiku/6/1729776_1_8.latex[/img]即与细胞内的[img]/upload/tiku/6/1729776_1_9.latex[/img]结合生成[img]/upload/tiku/6/1729776_1_10.latex[/img],[img]/upload/tiku/6/1729776_1_11.latex[/img]又解离成[img]/upload/tiku/6/1729776_1_12.latex[/img]和[img]/upload/tiku/6/1729776_1_13.latex[/img],而[img]/upload/tiku/6/1729776_1_14.latex[/img]与[img]/upload/tiku/6/1729776_1_15.latex[/img]一起转运回血。由于以[img]/upload/tiku/6/1729776_1_16.latex[/img]扩散的形式重吸收,所以其重吸收优先于[img]/upload/tiku/6/1729776_1_17.latex[/img]的重吸收。@jin
转载请注明原文地址:https://ti.zuoweng.com/ti/8TnCKKKQ
随机试题