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【可下载】精品解析:安徽省阜阳市颍州区阜阳市第三中学2023-2024学年高二下学期6月期中生物(解析版)

  • 2026-04-17 21:29:50
【可下载】精品解析:安徽省阜阳市颍州区阜阳市第三中学2023-2024学年高二下学期6月期中生物(解析版)

考生注意:

1.本试卷分选择题和非选择题两部分。满分100分,考试时间75分钟。

2.答题前,考生务必用直径0.5毫米黑色墨水签字笔将密封线内项目填写清楚。

3.考生作答时,请将答案答在答题卡上。选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;非选择题请用直径0.5毫米黑色墨水签字笔在答题卡上各题的答题区域内作答,超出答题区域书写的答案无效,在试题卷、草稿纸上作答无效。

4.本卷命题范围:人教版选择性必修13

一、选择题:本题共15小题,每小题3分,共45分。每小题只有一个选项符合题目要求。

1. 杭州亚运会是中国为世界奉献的一届简约、安全、精彩的运动盛会。在比赛过程中,运动员的身体会出现一系列变化,下列相关叙述正确的是(

A. 剧烈运动产生的乳酸会使内环境中H+浓度升高,从而导致内环境pH明显下降

B. 血浆中CO2浓度升高会刺激下丘脑呼吸中枢使呼吸加快加深

C. 运动员在比赛中,身体的产热量大于散热量以维持体温恒定

D. 大量出汗时,下丘脑感受到细胞外液渗透压升高后促使大脑皮层产生渴觉

【答案】D

【解析】

【分析】各级中枢的分布与功能:

①脑:大脑皮层是调节机体活动的最高级中枢,是高级神经活动的结构基础。其上有语言、听觉、视觉、运动等高级中枢。

②小脑:有维持身体平衡的中枢。

③脑干:有许多重要的生命活动中枢,如心血管中枢、呼吸中枢等。

④下丘脑:有体温调节中枢、渗透压感受器(水平衡中枢)、血糖平衡调节中枢,是调节内分泌活动的总枢纽。

⑤脊髓:调节躯体运动的低级中枢。

【详解】A、哺乳动物剧烈运动产生的乳酸会导致内环境的pH有所降低,但不会明显下降,原因是血浆中存在缓冲物质,A错误;

B、呼吸中枢位于脑干,B错误;

C、运动员在比赛中,身体的产热量等于散热量以维持体温的恒定,C错误;

D、大量出汗时,机体失去大量水分,细胞外液渗透压升高,下丘脑感受到细胞外液渗透压升高,将信息传至大脑皮层并产生渴觉,使人主动饮水,D正确。

故选D。

2. 下图甲表示在神经纤维上连接两个完全相同的灵敏电表,表1两电极分别在ab处膜外侧,表2两电极分别在d处膜的内外侧。在bd的中点c处给予适宜刺激,相关的电位变化曲线如图乙、图丙所示,下列相关叙述正确的是(

A. c处给予适宜刺激,表1和表2指针都发生偏转,说明兴奋在神经纤维上可双向传导

B. 图甲中的表1记录得到图丙所示的电位变化曲线,表1指针会发生2次方向相同的偏转

C. 图乙曲线处于③点时,图丙曲线正处于④点,此时d处膜电位表现为外正内负

D. 若降低膜外Na+浓度,③和④点均下移,若降低膜外K+浓度,③和④点均上移

【答案】A

【解析】

【分析】静息电位与动作电位:

(1)静息电位静息状态时,细胞膜两侧的电位表现为外正内负,产生原因:K+外流,使膜外阳离子浓度高于膜内。

(2)动作电位受到刺激后,细胞膜两侧的电位表现为外负内正,产生原因:Na+内流,使兴奋部位膜内侧阳离子浓度高于膜外侧。

(3)兴奋部位与未兴奋部位之间由于电位差的存在,形成了局部电流。

【详解】A、c处给予适宜刺激,表1和表2指针都能发生偏转,说明兴奋在神经纤维上可双向传导,A正确;

B、1ab接线柱都接在膜外侧,当电流流经两接线柱时,指针偏转方向相反,因此图甲中的表1记录的是图丙所示的电位变化曲线。电流流经b柱时指针发生一次偏转,流经a柱时指针又发生一次偏转,共发生2次方向相反的偏转,B错误;

C、图乙曲线处于③点时,神经纤维正处于动作电位的峰值,d点膜电位表现为外负内正,由于兴奋在神经纤维上的传导是双向的,且c点是bd的中点,因此此时b点也处于动作电位状态,表1的偏转情况正处于④点,C错误;

D、若降低膜外Na+浓度,Na+内流减少,动作电位的峰值降低,即③点下移④点上移,若降低膜外K+浓度,影响的是静息电位,不影响③和④点的移动,D错误。

故选A。

3. 下列关于人体生命活动调节的叙述,正确的是(

A. 在神经调节中反射弧是完成反射活动的结构基础

B. 神经递质进入突触后神经元发挥作用后被降解

C. 当血钠含量降低时,肾上腺髓质分泌的醛固酮增加

D. 溶菌酶溶解细菌细胞壁杀死细菌的过程属于特异性免疫

【答案】A

【解析】

【分析】激素调节是指由内分泌器官(或细胞)分泌的化学物质进行的调节。

不同激素的化学本质组成不同,但它们的作用方式却有一些共同的特点:(1)微量和高效;(2)通过体液运输;(3)作用于靶器官和靶细胞。

激素一经靶细胞接受并起作用后就被灭活了。激素只能对生命活动进行调节,不参与生命活动。

【详解】A、在神经调节中反射弧是完成反射活动的结构基础,A正确;

B、神经递质与突触后膜上相应受体结合后会被降解,神经递质不会进入突触后神经元,B错误;

C、醛固酮由肾上腺皮质分泌,C错误;

D、溶菌酶溶解细菌细胞壁杀死细菌的过程属于非特异性免疫,D错误。

故选A。

4. 研究人员对黄山景区内短尾猴的数量进行了调查,若其种群增长速率变化曲线如图所示(假设调查期间无迁入和迁出)。下列有关该种群数量变化的叙述,错误的是(

A. 该种群在第4年时种群数量达到最大值

B. 种群数量达到K值时,增长速率最大

C. 在第410年间,该种群的出生率小于死亡率

D. 随着种群数量增加,环境阻力逐渐增大

【答案】B

【解析】

【分析】一定的环境条件所能维持的种群最大数量称为环境容纳量,又称K值。

【详解】A、该种群在04年增长速率大于0,种群数量一直增加,第4年时种群数量达到最大值,在第4

通过网盘分享的文件:试卷10

链接: https://pan.baidu.com/s/1NLwjjiMT7FuK3ySySi0-Xw?pwd=4321 提取码: 4321 

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  1. CONNECT:[ UseTime:0.000393s ] mysql:host=127.0.0.1;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000602s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000266s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.004241s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000492s ]
  6. SELECT * FROM `set` [ RunTime:0.000196s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000574s ]
  8. SELECT * FROM `article` WHERE `id` = 477014 LIMIT 1 [ RunTime:0.000479s ]
  9. UPDATE `article` SET `lasttime` = 1776465085 WHERE `id` = 477014 [ RunTime:0.001086s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.003938s ]
  11. SELECT * FROM `article` WHERE `id` < 477014 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.003076s ]
  12. SELECT * FROM `article` WHERE `id` > 477014 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000494s ]
  13. SELECT * FROM `article` WHERE `id` < 477014 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000691s ]
  14. SELECT * FROM `article` WHERE `id` < 477014 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000725s ]
  15. SELECT * FROM `article` WHERE `id` < 477014 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001008s ]
0.094132s