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1、名师精编优秀教案观察生物结构1.2.2 细胞的分裂与分化一、教学目标(1)描述细胞分裂的基本过程;(2)说出分化和组织的概念;(3)概述生物体的各种组织是由细胞分裂和分化形成的;识别植物的几种主要组织,识别人体的几种基本组织;二、课时安排1 课时三、教学重点细胞分裂的基本过程四、教学难点细胞分化形成组织。五、教学过程(一)导入新课课堂开始前,给大家提供了两个材料,你知道他们之间又怎样的关系吗?一粒小小的种子发育成了一株完整的番茄植株,那么可爱的同学们又是如何发育来的呢?来看看我们最初的样子,一个受精卵,同学们,你知道这样一个小小的细胞想要发育成复杂的人体,他都发生哪些变化呢?很多同学对于细胞的
2、生理过程有了一定的认识,大家事先预习,很好的习惯。那么大家说的对不对呢?咱们今天就一起一番茄为例,开启细胞分裂和分化的探究之旅。(二)讲授新课探究一:细胞的分裂名师精编优秀教案阅读教材 31 32 页文字资料,思考:1、分裂时细胞核有什么变化?2、植物细胞分裂时,在两个细胞核中央形成什么?3、分裂时细胞质分成两份吗?4、描述植物细胞、动物细胞的分裂过程?5、什么是细胞的生长?探究二:细胞的分化阅读教材 32 33 页文字资料,思考:1、什么细胞的分化2、细胞分化的结果是什么?3、植物有哪几种组织?4、动物有哪几种组织?(三)知识运用1生物体细胞数目增多是细胞_的结果。2“叶脉书签”所属的组织是
3、()A营养组织B分生组织C保护组织D输导组织(四)归纳小结一、细胞分裂的过程文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2
4、M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O1
5、0 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X
6、4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N
7、4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A
8、8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L
9、10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10名师精编优秀教案第一步:细胞核一分为二;第二步:在两个细胞核中央形成新的细胞膜和细胞壁(动物
10、不形成细胞壁),将细胞质一分为二。二、细胞的分化细胞分化形成了不同的细胞群(组织)植物组织:保护组织、输导组织、营养组织、分生组织、机械组织动物组织:上皮组织、神经组织、肌肉组织、结缔组织(五)随堂检测1如图表示细胞分裂与分化的过程,下列叙述不正确的是()A表示细胞分裂,表示细胞分化B人体由小长大与细胞的生长、分裂和分化有关C细胞分化形成不同的组织D使细胞数目增加,可导致细胞中的遗传物质改变2如图表示细胞的几种生理过程,以下叙述错误的是()A表示细胞的生长过程B通过形成了不同的组织-文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7
11、O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG
12、9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y
13、6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC
14、3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V
15、5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档
16、编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9
17、G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10名师精编优秀教案C导致遗传物质发生了改变D表示细胞分裂,结果是细胞数目增多3绿色植物茎内形成层细胞分裂时()A细胞膜先分裂,最后细胞核分裂B分裂过程受细胞核内遗传物质的控制C细胞核内遗传物质先均分后复制D产生的子细胞内染色体的数目会减半六、板书设计第二章观察生物结构第二节细胞的分
18、类和分化一、细胞分裂的过程第一步:细胞核一分为二;第二步:在两个细胞核中央形成新的细胞膜和细胞壁(动物不形成细胞壁),将细胞质一分为二。二、细胞的分化细胞分化形成了不同的细胞群(组织)植物组织:保护组织、输导组织、营养组织、分生组织、机械组织动物组织:上皮组织、神经组织、肌肉组织、结缔组织七、作业布置细胞分裂后新细胞与原细胞的遗传物质发生了改变_(判断对错)预习 35 37 多细胞生物体的结构层次文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O1
19、0 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X
20、4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N
21、4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A
22、8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L
23、10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码
24、:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2
25、M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10名师精编优秀教案植物体结构层次动物体结构层次八、教学反思文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4
26、ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D
27、1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10
28、文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:C
29、T9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3
30、A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10
31、HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10文档编码:CT9G2M3A7O10 HG9X4M6Y6N4 ZC3A8D1V5L10