3.2.2植株的生长第1课时2021-2022学年生物人教版七年级上册随堂小测
※题型：单选题※知识点：单选题※试题难度：中等<br>一棵未修剪的银杏树有5个侧枝,这棵树共有多少个顶芽( )<br>A.5个 B.6个 C.4个 D.7个<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/f95559c6fbea4db0b980965f73063b2c/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/8f22457ab8154a348f21a88b528c6cd0/545C1A345622785E623C383A85A6D4DE.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>按芽将来发育情况的不同,可将芽分为( )<br>A.侧芽和花芽 B.叶芽、花芽和顶芽<br>C.叶芽、花芽和混合芽 D.顶芽和侧芽<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/b262b86992464ed4b324e1fd403a8dba/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/54801583ce4c48168e80527b41336bcc/9FA977EFFDC5FB6CFC5781476A2E0816.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>幼根的生长依靠细胞数量的增加和细胞体积的增大,根尖中能分裂产生新细胞的部位是( )<br>A.根冠 B.分生区 C.伸长区 D.成熟区<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/210b001909e646bc88b24f7ddda2be8d/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/9de6f4932b624e38a9e4c8ab054e1664/F5D166307A787DFE5A132B605F09BC93.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图所示为根尖的结构,根尖吸收水分和无机盐的主要部位和不断分裂产生新细胞的区域分别是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/2/2A8E9201E3874D291CD7849A7EB279F4.png"><br>A.A和B B.C和D C.A和C D.A和D<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/d34f0e54724e4c029cac677827dfaadb/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/b9d8d71823ac4c5bb2f6c563abf4b3bf/D6D4714CA57B55C31A1193A7F3972F75.png"><br><br>※题型：读图填空题※知识点：读图填空题※试题难度：中等<br>如图所示是枝条和叶芽的结构,<br>请据图<br>回答问题。<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/6/23/049B94C1FA4BCAD71815670256CF3282.png"><br>1.根据芽的着生位置划分,a为芽,b为芽。<br>2.图中枝条上的b由叶芽中的(填序号,下同)发育而来,叶芽中的不断伸长,促使枝条上的c不断伸长。<br>3.茎不断加粗是其中的细胞不断分裂和分化的结果。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/b49fe212670542cb8dea4b7fd562b032/A52533621086EDBBDF69ACEEC14011E1.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/2d360089f5c148f9abb3cf50d238d95d/A9A2AB968372B45662E1F09F0A122194.png"><br><br>
页:
[1]