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人教版七年级上册生物期中知识点总结(填空版)

  • 2026-11-05 04:46:59
人教版七年级上册生物期中知识点总结(填空版)

期中复习正在进行中,我们的考试范围是第一单元第一节到第二单元第二节,对应课本1到72页。生物知识点多、概念细,考前一定要及时梳理,避免基础题丢分。这份资料整理了人教版七年级上册生物期中核心考点,按教材顺序编排,以填空形式呈现,适合孩子闭卷自测,也方便家长打印辅导。建议先独立完成,再对照答案查漏补缺,把细胞结构、显微镜使用、动植物体结构层次、藻类苔藓蕨类植物和种子植物等重点内容练熟。

第一单元 生物和细胞

第一章 认识生物

1.科学观察可以直接用肉眼,也可以借助________、显微镜等仪器。

2.生物的特征:①生物的生活需要________;②生物能进行________;③生物能排出体内产生的________;④生物能对外界刺激作出________;⑤生物能________和________;⑥生物都有________和________的特性;⑦除________以外,生物都是由细胞构成的。

3.按照形态结构特点,将生物分为________、________和其他生物三大类。

第二章 认识细胞

1.显微镜(1)显微镜放大倍数 = ________放大倍数 × ________放大倍数。(2)显微镜成的像是________像。玻片移动方向和物像移动方向________。(3)光线弱时,选用________光圈、________面镜;光线强时,选用小光圈、平面镜。(4)转动________可以大幅度升降镜筒;转动________小幅度升降镜筒,使物像更清晰。

2.植物细胞临时装片制作步骤:擦→________→撕→展→________→染→吸。

3.动物细胞临时装片制作步骤:擦→________→刮→涂→________→染→吸。滴加________,目的维持细胞正常形态。

4.细胞结构:植物细胞特有结构:________、________、________;动植物细胞共有的结构:________、________、________、线粒体。________控制物质进出细胞;________是细胞的控制中心;________是细胞的动力车间。

5.细胞的生活需要________和________。________是遗传信息库。

第三章从细胞到生物体

1.细胞分裂:细胞分裂时,________先复制均分,新细胞和原细胞遗传物质________。

2.细胞分化形成不同的________。

3.动物体结构层次:________→________→________→________→动物体(人体)人体四大组织:上皮组织、________、神经组织、________。

4.植物体结构层次:________→________→________→植物体(没有________)植物五大组织:保护组织、________、输导组织、________、机械组织。绿色开花植物六大器官:营养器官:根、________、叶;生殖器官:花、________、种子。

5.单细胞生物:整个身体只由________个细胞构成。例如草履虫、衣藻、变形虫。草履虫依靠________运动,靠表膜呼吸。

第二单元多种多样的生物

第一章藻类与植物的类群

第一节藻类、苔藓植物和蕨类植物

1.藻类:大多生活在水中,________根、茎、叶的分化;________输导组织;依靠________繁殖。代表:衣藻、水绵、海带。

2.苔藓植物:大多生活在________的陆地;有________、________分化,没有真正的根,只有________;无输导组织;依靠孢子繁殖。苔藓可以作为监测________的指示植物。

3.蕨类植物:有________、________、________分化,________输导组织;依靠孢子繁殖。代表:肾蕨、卷柏。

第二节种子植物

1.种子植物依靠________繁殖后代,分为________植物和________植物。二者最大区别:裸子植物种子外________果皮包被;被子植物种子外________果皮包被。

2.菜豆种子结构:种皮 + ________片子叶(双子叶植物),营养储存在________。

3.玉米种子结构:种皮和果皮 + ________片子叶(单子叶植物),营养储存在________。

4.________是新植物的幼体,由胚芽、胚轴、胚根、子叶组成。

以上是七年级上册生物期中复习的核心填空练习。做题时建议孩子先不看答案,独立完成,遇到卡壳的知识点再回到课本巩固。完成后,可以对照答案版订正,把出错的题目整理到错题本中,考前重点复习。需要完整答案版的家长和老师,可以关注本公众号并私信回复关键词 “七上知识点生物答案” 领取。

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  9. UPDATE `article` SET `lasttime` = 1794126232 WHERE `id` = 570337 [ RunTime:0.001080s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000326s ]
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  12. SELECT * FROM `article` WHERE `id` > 570337 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000549s ]
  13. SELECT * FROM `article` WHERE `id` < 570337 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000503s ]
  14. SELECT * FROM `article` WHERE `id` < 570337 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000792s ]
  15. SELECT * FROM `article` WHERE `id` < 570337 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000784s ]
0.104384s