2020-2021学年生物苏教版七年级上册同步实验室（十七）观察：花的结构
※题型：单选题※知识点：单选题※试题难度：较易<br>如果仅从花的结构分析,在鲜花店工作的人,最关注的应是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/18/6601EE15226FFDC0775AEDCFE458E608.png"><br>A.花冠 B.花托 C.雌蕊 D.雄蕊<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/1042be6894c048b68fc0354338d876f7/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/1d8fc386a07d42d487bb55d7b6205757/F1ACE06E4EAB59400D5FBD1B8BCD57C8.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>解剖一朵花,观察其结构,在子房内看到的白色小颗粒是( )<br>A.柱头 B.胚珠 C.花药 D.花粉<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2016/910867662a2f4d5ebf48b86f7f171af1/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2016/1aa7fd3ea36e487aa43ab52e67e1825b/7FA1780ACFD1CE5B750BABC08532BC3B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>为进一步认识桃花的结构,学校生物兴趣小组的学生,按照从外到内的顺序对桃花进行解剖并观察其结构,下列顺序排列正确的一项是( )<br>A.雌蕊、雄蕊、花冠、花萼<br>B.花萼、花冠、雄蕊、雌蕊<br>C.雄蕊、雌蕊、花冠、花萼<br>D.雄蕊、雌蕊、花萼、花冠<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/28ade7546a26429dab75b40275dbf1bb/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/b085c4d1eda4494e99c84fdbd3b197d3/8800C97DA3DF77376BC0CB23FB33117A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>植物繁殖过程中,接受花粉的结构是( )<br>A.柱头 B.花柱 C.花药 D.花粉管<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7624f175b9aa446794ed80c9bf6cf86e/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>花粉和胚珠分别存在于( )<br>A.子房和花药 B.花药和子房 C.花丝和花柱 D.花丝和子房<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/9ce0c92f89e840acb6b237985087c228/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>下图为小玲在仔细观察一朵花的形态结构后绘制的简图。若在开花前将此花套袋,则这朵花( )<br><img src="https://picture1.zhihuicn.com/2/BE60069378AD27903C17F7413786A921.png"><br>style="VERTICAL-ALIGN:middle">A.不会结果 B.会结果 C.不会开花 D.不会凋落<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/4D02062B69CC30C920DA423ADCDEAF9A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>为了进一步认识樱桃花的结构,小明结合课本插图(如图所示)对樱桃花实物进行认真观察。下列不可行的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/7/16/2850C9FF810B917EB11BE43D11D236AE.png"><br>A.数清花瓣、花萼的数量<br>B.准确描述樱桃花各结构的颜色<br>C.利用放大镜辅助观察,并记录观察结果<br>D.利用高倍显微镜直接对樱桃花做整体观察<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/03b78d879c884bb4b62ad3cb4d0d7db4/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br>略<br>※题型：读图填空题※知识点：读图填空题※试题难度：中等<br>如图是花的基本结构示意图,请根据图回答:<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/7/16/DF53CFE6E7F1CBB42129F19D9AD65B4D.png"><br>1.图中,①和花丝组成了,柱头、花柱和子房组成了。<br>2.能产生花粉的是花药,花药上的花粉落到雌蕊的柱头上的过程,叫做。<br>3.完成受精作用后,子房将来发育成,它内部的胚珠将发育成。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/759a91e7641e497d88ddf12082ad916c/9F99B44F19AE7EEEF04EE59705824DDC.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/0a5d555173be4d56ad2b440e1bb7ad6e/9DE1292EA581FA2A2CC481CC56D6E038.png"><br><br>
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