2021-2022学年生物人教版七年级上册小题狂练：3.2.1 种子的萌发
※题型：单选题※知识点：单选题※试题难度：中等<br>将花生米的一个瓣播种到地里不能萌发,主要原因是( )<br>A.地里的水不足 B.没有子叶<br>C.没有胚乳 D.胚被破坏了<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/36bd57ef27c94869ac419a6dd3fa54e0/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/8ecfe2bbda174660b24c4236aea4b85c/DEF10ADD8BFC2E0F2D84B0557CE1BB23.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>四粒玉米种子的不同部位受到损伤(阴影部位表示缺损部分),即使在适宜条件下也不能萌发的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/17/1F29FD930629977E552B33BABBEB136E.png"><br>A.① B.②③ C.④ D.①②③④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/4d0779ab00e541888e19d0a243f6dbd5/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3f19624c9c8e4fc892849297f27bd595/0792B3595C14D94F25E66311542C8158.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>我国华北地区有一句农谚:“白露早,寒露迟,秋分种麦正当时”。秋分时节播种的小麦种子经过萌发,现在已是绿色的麦苗了。小麦种子萌发成幼苗的过程是( )<br>①种子吸收水分②胚根发育,突破种皮,发育成根③胚乳里的营养物质运输到胚④胚轴伸长,胚芽发育成茎和叶⑤子叶消失,幼苗独立生活A.①③②④⑤ B.①②③④⑤ C.①③⑤④② D.③①④②⑤<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/b5c4a84d645f4d45abf7206b10145307/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/4e2b5ef91d224c408428497891e16eac/7EDB1F688F9025418C1CBC4DF57AE764.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是大豆种子的部分结构示意图。下列有关叙述中,错误的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/6/25/2BB036EE8EED460A45B4EC43CBB9D80A.png"><br>A.大豆种子萌发时,图中④提供营养物质<br>B.豆芽菜可供食用部分主要由图中①发育而来<br>C.⑥既是大豆种子的主要部分,又是新植物体的幼体<br>D.大豆种子与玉米、水稻种子相比,玉米、水稻种子中没有⑥<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/4669140cfc9d493ca13b09d368ab3e81/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/6910f92ee7a9452ba1dc5bf69b1cebaa/46AF9311EF00BDC06CFF5E42EB44EF3A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在适宜的条件下,下列种子可能萌发的是( )<br>A.正在休眠的玉米种子<br>B.子叶部分损伤的菜豆种子<br>C.切去胚的小麦种子<br>D.煮熟的花生种子<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/73e5397c7fb147aea5c58227cd7353fb/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/b424af303cb94d3da3917375b9e39690/2E28EDA5FF0209023364BBFAD25A3F45.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如需探究温度对小麦种子萌发的影响,下表中可作为对照实验的组合是( )<br><tbody><br>培养皿编号<br>种子的数量(粒)<br>种子所处的环境(其他外界条件均相同且适宜)<br>①<br>100<br>培养皿底部垫有浸湿的餐巾纸<br>25℃<br>②<br>100<br>培养皿底部垫有干燥的餐巾纸<br>25℃<br>③<br>100<br>培养皿底部垫有浸湿的餐巾纸<br>15℃<br></tbody><br>A.①② B.①③ C.②③ D.A和B<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2018/3e13e1dbdb8a4eecb789060cf50ae377/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2018/52d3188042d940819f23dc4303e21ccd/890898BAF7095DBF990CFFDFAEC3925C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>阳阳探究种子萌发是否需要光照,用如图所示的实验装置,放入一粒小麦种子(具有休眠的特性),把此装置放在适宜温度的暗处,结果不萌发。对实验的下列分析与评价不合理的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/17/8839B1C18217A092BD1578D5E57A3BB5.png"><br>A.实验缺乏对照,不具说服力<br>B.种子太少,偶然误差增大<br>C.结果证明种子正处在休眠期<br>D.水分、氧气满足种子萌发要求<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2c0b980cf92248c0953e86c912e8ef5c/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/5c73971d0baf427f8ade3de24801ae4a/4A6939AE0ADA9145FE1A0BD2A662047E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图表示大豆种子在萌发形成幼苗的过程中有机物的变化,其中正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/9/84361575202B58043FB5E946F50575E0.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/9/FEB8E045D606C71803CFAAF17AE34316.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/9/A3B32546348B5F050AA22C44117221CD.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/9/727322226E3E69971037F3A0DFED710C.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/864d755ae41c4242a1ddaadae929b5aa/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/cfcdba9018b545b3914d744b21c675b9/EDA84CF35672C6FABF8E9A89628E76DE.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>为探究光照对种子萌发的影响,某同学分别测定蚕豆、烟草和苋菜的种子在见光和不见光条件下的发芽率,结果如图。下列分析正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/17/1A3721A92CA4E0336CA5115FC44D929F.png"><br>A.蚕豆种子组和苋菜种子组的温度必须保持相同<br>B.烟草种子见光组和苋菜种子不见光组的水分必须保持等量<br>C.蚕豆种子见光组和不见光组的温度必须保持相同且适宜<br>D.蚕豆种子和苋菜种子的萌发都不受光照的影响<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7dfde077b27f4ea6b2dd99e950897a92/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a7e8bd2eddcc4b65a0282e06b62bb880/D307AECB00191E27BB274EF07AA7827E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下表为某校兴趣小组探究“玉米种子萌发的外界条件”的实验设计,对其分析错误的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/6/25/1BBDAC4674972EA8B078E95D8658CCE0.png"><br>A.①号不萌发是因为缺少水分<br>B.③号不萌发是因为缺乏空气<br>C.④号不萌发是因为温度偏低<br>D.对照实验②和③的变量是水的多少<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/2ff6a35ec38e4ce49f5bb275b9896ecd/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/20d90bf1e5b14b08b782c206971025a3/8248029F22A4516923EC7415E36015D5.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>菜豆种子萌发的过程如图所示,下列分析符合事实的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/5/6/58E97C49BC1DF8690FB9C16FB9BE11D5.png"><br>A.菜豆种子是由子房发育而来<br>B.菜豆种子萌发时,最先突破种皮的是胚芽<br>C.菜豆种子在萌发过程中,提供营养物质的是胚乳<br>D.菜豆种子萌发时,需要适宜的温度、一定的水分和充足的空气<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/57409185a3c447b083119778fb83b894/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/b07974e88da44d7086efc5841cfc2aaa/5CE14C58B1AB6C0BB0420087C405B1F2.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下图是某种植物种子在适宜条件下鲜重的变化情况,曲线A表示萌发的种子,曲线B表示休眠或死亡的种子。下列有关种子干重变化描述正确是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/6/26/83ABE62C266CECA95BCF75D6DCDEEB4A.png"><br>A.在第I阶段显著增加,第Ⅱ阶段相对不变<br>B.在第I阶段显著减少,第Ⅱ阶段相对增加<br>C.在第I、Ⅱ阶段变化很小,第Ⅲ阶段显著减少<br>D.在第I阶段显著增加,第Ⅱ、Ⅲ阶段变化很小<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/d767873bc8d24d6c84390e55eec08d35/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/a26adb5f126546388ce83cae3c0189bd/747FE48A92AB6542C80B1CA94869A970.png"><br><br>
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