2018_2019学年高中生物每日一题体温调节和水盐调节(含解析)新人教版必修3.doc

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1、1体温调节和水盐调节高考频度: 难易程度:关于人体内水和无机盐的平衡和调节的叙述,错误的是A口渴的感受器不是位于下丘脑,而是位于口腔B细胞外液渗透压升高,抗利尿激素分泌增加,尿量减少C引起渴觉的神经冲动最初来自下丘脑D机体水和无机盐的平衡是在神经和体液共同调节下完成的【参考答案】A 1下列有关内环境稳态的叙述正确是A人体血浆接近酸性,pH 为 6.35-6.45B肌糖原不会分解成为血糖,肌糖原不参与血糖平衡的调节C水盐平衡调节中,下丘脑既是感受器也是效应器D神经细胞的静息电位是恒定不变的零电位2关于人体内水盐平衡调节的叙述中,正确的是A血浆渗透压降低时引起口渴B机体失水时,抗利尿激素分泌减少C

2、抗利尿激素使细胞吸水能力增强D抗利尿激素分泌增加,尿量增多3雪后有些同学在草地上打雪仗。他们把雪团放在手里,过了一会,发现手比未放雪之前2要热乎一些,有关此现象的叙述不正确的是A此过程中皮肤毛细血管收缩,立毛肌收缩B整个过程中甲状腺激素和肾上腺激素分泌增加C此过程中,机体某些细胞耗氧增加,代谢增强D握雪后,感受器会产生兴奋并将兴奋传入体温调节中枢,使其产生冷觉4如图为人体内体温与水平衡调节的示意图,有关叙述正确的是当受到寒冷刺激时,a、b、c 激素的分泌均会增加c 激素分泌增多,可促进骨骼肌与内脏代谢活动增强,产热量增加下丘脑是体温调节中枢下丘脑具有渗透压感受器功能,同时能合成、释放 e 激素

3、寒冷刺激使下丘脑分泌促甲状腺激素,通过促进甲状腺的活动来调节体温ABCD1【答案】C【解析】本题考查的是关内环境稳态的相关知识。人体血浆接近酸性,pH 为7.357.45,A 错误;肌糖原不会分解成为血糖,但血糖能合成肌糖原,因此肌糖原参与血糖平衡的调节,B 错误;水盐平衡调节中,下丘脑既是感受器(渗透压感受器)也是3效应器(分泌抗利尿激素),C 正确;神经细胞的静息电位是膜外为正电,膜内为负电,D 错误。2【答案】C 【解析】血浆渗透压升高时,下丘脑的渗透压感受器兴奋,将兴奋传导到大脑皮层引起口渴,A 错误;当机体失水时,细胞外液的渗透压升高,抗利尿激素分泌增多,B 错误;抗利尿激素的作用是

4、促进肾小管和集合管重吸收水分,C 正确;抗利尿激素的作用是促进肾小管和集合管重吸收水分,尿量减少,D 错误。4【答案】A【解析】本题考查体温调节相关知识。据图分析,当受到寒冷刺激时,机体要增加产热量,促甲状腺激素释放激素、促甲状腺激素、甲状腺激素、肾上腺素要增加,促进骨骼肌与内脏代谢活动增强,增加产热,正确;c 甲状腺素和 d 肾上腺素分泌量增加,可促进骨骼肌与内脏代谢活动,使得产热量增加,正确;下丘脑是体温调节中枢,正确;下丘脑具有渗透压感受器功能,同时合成 e 抗利尿激素,由垂体后叶释放,能促进肾小管和集合管对于原尿的水分重吸收,减少尿量,降低体内渗透压,错误;寒冷刺激使下丘脑分泌促甲状腺激素释放激素,通过促进垂体分泌促甲状腺激素促进甲状腺分泌甲状腺激素加强产热,错误。4

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