试题与答案

运动员进行长时间运动如铁人三项赛时,血液中胰岛素和胰高血糖素含量的变化情况如下表

题型:选择题

题目:

运动员进行长时间运动如铁人三项赛时,血液中胰岛素和胰高血糖素含量的变化情况如下表。下列说法正确的是

[ ]

A.胰岛B细胞分泌增多,血液中胰高血糖素含量增加

B.长时间运动机体消耗大量能量,因而血糖浓度会不断降低

C.胰岛素和胰高血糖素含量发生变化,说明人体内环境处于不稳定状态

D.胰高血糖素能促进肝糖元和脂肪的分解,满足机体对能量的需要

答案:

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