3.1.1种子萌发的过程—2021-2022学年生物冀少版八年级上册同步课时作业
※题型：单选题※知识点：单选题※试题难度：中等<br>我们常吃的面粉,主要来自小麦种子结构中的哪部分( )<br>A.子叶 B.胚芽 C.胚乳 D.种皮<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/af8392492f97469da8187ade1cf58747/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/d89283d92d674b5d944d25a44bf886ae/5542EA761F95A2F5C02C95C60158D449.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>蚕豆种子是我们喜欢的食物,其食用部位主要是( )<br>A.胚芽 B.胚根 C.胚轴 D.子叶<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/66f08322f5f84f099020dc7fada7fc17/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/3b5e87d7f2c9460b9fa0b013711b13f8/CDE3ABC76F5997D5546057806D1E0422.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>我们吃的大米、面粉主要是种子的( )<br>A.胚 B.胚乳 C.子叶 D.胚芽<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/e4597588a98f429a85c736bea5792e63/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/81cd4a0163d8413584c3d30d49f32549/408F6EDD8A262C9B12539DC2DD26BF5E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>大豆、玉米种子萌发时所需要的养料分别来自( )<br>A.子叶、胚乳 B.胚芽、胚根 C.胚根、子叶 D.胚轴、胚芽<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/13b65068a46c46409720bd7763147087/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/bcd37d5240194f539ded43776794353e/453D26CA75643F12A0B100E65E26DDF3.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>参天大树是由种子的胚发育而来的,关于胚的发育下列叙述正确的是( )<br>A.胚根最先突破种皮,发育成根<br>B.胚轴发育成茎<br>C.子叶发育成叶<br>D.胚发育成植物体地面以上的部分<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/256dc577c31040cfb4958c4506569d91/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/492ab42ab13a4ac988da0e4fb5171d17/8545865117E5EB8A2271BC7A6DD943E8.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是观察菜豆种子实验时看到的各部分结构,下列说法正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/1/52DAC36E11F85F40FFC718229682E5DA.png"><br>A.①②③共同组成种子的胚<br>B.②是胚轴,能发育成茎<br>C.①和③的细胞具有分裂能力<br>D.④加碘液后能变成蓝色<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/80b97a791cb44ef6b55da8c6d5b05a3f/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/8506fecc29c34d119cd2478a9ad4ed13/3C3FE11F983CC44A2C1A00FEE673DFB4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>种子萌发的过程是( )<br>①种子吸收水分②子叶或胚乳里的营养物质分解、转化,输送到胚轴、胚根和胚芽③胚轴伸长,胚芽发育成茎和叶④胚根发育,突破种皮,形成根A.①④②③ B.①②④③ C.②①④③ D.①④③②<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/132d53859835429bbfae08f748897adc/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/9d1690e14226479cb925dd7c66196259/F0F09498939437CF75B92F2A43676BD7.png"><br><br>
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