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北师大版初中生物学教材配套练习题(含答案) | 第7章

  • 2026-04-04 07:45:26
北师大版初中生物学教材配套练习题(含答案) | 第7章

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导语

北师大版初中生物学教材进行全面修订后,已于2024年秋季开始使用。为保障基于新教材的教学顺利实施和平稳过渡,北师大出版社联合北师大版初中生物学教材编写组,精心打造了与教材配套的数字资源。“京师生物圈”将持续发布相关资源,帮助广大教师充分把握新教材的重难点内容,为教师教学、学生学习提供便利。

本册教材配套练习题由福建省普通教育教学研究室张锋、余鸿婷,福建省安溪县第六中学李钦发,福建省石狮市石光中学林婉晶提供。

第7章 人体的物质运输

第1节 血液

1.将等量新鲜兔血分别注入A、B、C、D四支试管中(其中A、B试管中不加任何物质,C、D试管中加入抗凝剂)。静置一段时间后,如下图所示,其中正确的图示是(    )。

2.血液能反映祖先信息,如血型分布与人类迁徙相关,可体现族群起源和遗传背景。血液中含有遗传信息的主要成分是(    )。

A.血浆 

B.红细胞 

C.白细胞 

D.血小板

3.在无偿献血活动中,医生对一位志愿者进行了血型检测,结果为A型血。

(1)请问在紧急情况下,该志愿者的血液可以输给(    )。

A. A型血的人 

B. A型和B型血的人  

C. O型血的人  

D. 所有血型的人

(2)无偿献血对个人和社会都具有重要意义,以下关于无偿献血的说法正确的是(    )。

A. 无偿献血会影响身体健康

B. 健康成年人一次献血 200~300 mL不会影响健康

C. 只有血型为O型的人才能无偿献血

D. 只有血型为A型的人才能无偿献血

4.血液具有很强的再生能力,主要是因为骨髓中的造血干细胞能够分化出各种血细胞。请从血细胞的功能出发,简述造血干细胞这种功能对人体的重要意义。

参考答案

1.C。2.C。3.(1)A。(2)B。

4.造血干细胞能够分化出红细胞、白细胞、血小板等各种血细胞。红细胞主要负责运输氧气,维持生命活动;白细胞是人体的“卫士”,能够吞噬病菌、参与免疫反应,避免人体受病原体的侵害;血小板在止血过程中发挥重要作用。造血干细胞这种分化功能保证了人体在受伤、失血或患病等情况下,能够不断产生新的血细胞,维持血液系统的正常功能和人体的健康。

第2节 血液循环

1.图甲为观察小鱼尾鳍内血液的流动实验时,显微镜下观察到的物像,①②③表示血管;图乙为小鱼尾鳍三种血液流速变化示意图,图中Ⅰ、Ⅱ、Ⅲ分别代表人体内三种不同类型的血管。下列相关叙述错误的是(    )。

A.根据红细胞单行通过,血流速度最慢的现象,判断①和Ⅱ都是毛细血管

B.图甲中③是小静脉,血流速度和图乙中的Ⅰ血管对应

C.图甲中②是小动脉,血液由主干血管流向分支血管

D.血液流经图中①和Ⅱ的血管后营养物质和氧会减少

2.在探究心脏的结构和功能的实验中,同学们解剖了羊心,观察到心脏主要由心肌构成,内部有四个腔。对比四个腔室的心肌厚度,壁最厚的结构及其功能是(    )。

A.左心房;接收高含氧血,功能复杂

B.左心室;要将血液泵向全身各处

C.右心房;接收全身静脉血

D.右心室;负责肺循环

3.下图为人工心脏模型图,它利用生物机械(包括入血管、出血管和血液泵)部分或完全替代心脏的泵血机能。图中的入血管A接心室,将心室的血液输送到血液泵,再由血液泵通过出血管B送往动脉。

(1)据图片可知,人工心脏代替了__________的相关功能,成为__________(填“体循环”或“肺循环”)的起点,经过该循环,血液中氧气含量会__________(填“增加”或“减少”)。

(2)人工心脏为输送血液提供了动力,在人工心脏手术完成后,病人需要吃消炎药,消炎药被吸收到血液,最先到达心脏的[      ]__________。

(3)图中人工心脏与入血管A、出血管B相连,血管A、血管B内血液类型分别是__________、__________。

(4)请简述人工心脏的工作原理。

_____________________________________________________________________________

4.如图所示为某同学在校园科技节上的参赛作品——血液循环演示模型,其中单向阀模拟瓣膜,软管模拟与心脏相连的血管(①②③④),装置内的红墨水模拟血液。据图回答:

(1)模型中的注射器模拟心脏的______________和舒张过程。注射器A里的血液为是静脉血,则注射器B里血液的类型为______________。

(2)在演示过程中,如压入注射器A,单向阀门Ⅰ打开,单向阀门Ⅱ________(填“打开”或“关闭”),模拟肺循环,血液途径为A→_____________→B(填序号),血液经过肺循环后,由__________血变成__________血。

(3)指导老师指出该模型中的心脏结构不完整,可进一步完善。请写出你的修改方案(写一点即可)__________________________________________________________________。

参考答案

1.B。2. B。

3.(1)左心室  体循环 减少。(2)⑤右心房  (3)动脉血  动脉血。(4)人工心脏的工作原理是:通过驱动装置带动血泵工作,血泵像自然心脏的心室一样,有节律地收缩和舒张,从而推动血液在血管中流动,实现血液循环。

4.(1)收缩  动脉血。(2)关闭  ④→①   静脉   动脉。

(3)该模型心脏腔室结构不完整,缺少心房(或没有模拟房室瓣的结构)。

本文版权为京师生物圈所有,转载或引用请联系授权。感谢您的关注!

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  1. CONNECT:[ UseTime:0.000386s ] mysql:host=127.0.0.1;port=3306;dbname=c_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000585s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000320s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000288s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000561s ]
  6. SELECT * FROM `set` [ RunTime:0.000275s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000626s ]
  8. SELECT * FROM `article` WHERE `id` = 466546 LIMIT 1 [ RunTime:0.000536s ]
  9. UPDATE `article` SET `lasttime` = 1775293886 WHERE `id` = 466546 [ RunTime:0.000806s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000270s ]
  11. SELECT * FROM `article` WHERE `id` < 466546 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000491s ]
  12. SELECT * FROM `article` WHERE `id` > 466546 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000462s ]
  13. SELECT * FROM `article` WHERE `id` < 466546 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000836s ]
  14. SELECT * FROM `article` WHERE `id` < 466546 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003448s ]
  15. SELECT * FROM `article` WHERE `id` < 466546 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001698s ]
0.078240s