3.1.3芽的发育2021-2022学年生物冀少版八年级上册随堂小测
※题型：单选题※知识点：单选题※试题难度：较易<br>“碧玉妆成一树高,万条垂下绿丝绦。不知细叶谁裁出,二月春风似剪刀。”万千枝条及其绿叶是由什么发育而来的( )<br>A.种皮 B.花 C.根 D.芽<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d8a18e2b4b614adbb4a3802e0e97b236/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/86632e95131b4a96909f6fd20fcdfdff/39B826165A9FC6F37E31EF9364C1233A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>以下选项中,没有分裂能力的是( )<br>A.侧芽的芽原基 B.梨树的形成层<br>C.根尖的分生区 D.叶芽的芽轴<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/9654e8e78d0248618496c9bcd5b0eabc/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/135f6b8148784d56833e4d654fa62335/F06797B15D70BEE170A58BE737AD687E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>未经修剪的苹果树共有5条完好无损的侧枝,那么这株苹果树共有顶芽( )<br>A.1个 B.4个 C.5个 D.6个<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/14a06280ec20426ba1285c2655c8124c/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/1ab9ce2b4b2f47878534740b46e614a7/74F677AED8A731BB26B66C2262E3CC13.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列关于芽的描述中,正确的是( )<br>A.发育成花的芽一定是侧芽<br>B.按发育结果不同,芽分为花芽、混合芽和叶芽<br>C.芽只能发育成枝条<br>D.混合芽只能发育成花或者茎叶<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/508ff19ee9fc4334a779ee7d991922d2/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/2e8d50cefe6641e28ba73de684b16a23/73751DABF9F6B8CA7D151E25BC22D6BB.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,下列关于芽的叙述错误的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/25/E57012FFA764256B194E98A41D2C12E2.png"><br>A.1可以不断分裂产生新细胞,使2伸长<br>B.a是顶芽,b、c是侧芽<br>C.3是叶原基,能发育成b或c<br>D.2不断伸长,能发育成d<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/f65ff3cc9aa14d4b922cba899f4ca52d/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/60d89d63099f48f1a644bf916b4939a4/F13EB43047AB6A4DC3252311A6EEC9A7.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>为了加强遮阴效果,对于栽植在公路两旁的法国梧桐,应采取的措施是( )<br>A.保护侧枝和侧芽 B.摘除主干的顶芽<br>C.保护主干的顶芽 D.摘除侧枝的顶芽<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/1ccad86e3cb740a1a8c389820d09f8a4/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ff406d0582774e93ad4e5d4dbfcd6cf0/2D15BD8E9CADD8437B4E94ACB7A635D9.png"><br><br>
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