2021-2022学年七年级上册生物人教版每节一练：3.2.3开花和结果（基础题）
※题型：单选题※知识点：单选题※试题难度：中等<br>黄瓜顶上生长的黄色小花为( )<br>A.雌花 B.雄花 C.两性花 D.风媒花<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/acf36ed60ba74f218e1ae8ab13ef6444/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/8cf4b788514e464895ebdd2f722ee27b/10D131BEAF8457AB6F534EEE7C61F092.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>能够进行自花传粉的花一定是( )<br>A.完全花 B.雌花 C.两性花 D.雄花<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/29195db8b0364b34b0eac653c0a6c2f7/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/fd95f222dba447698db46143a00451eb/13F491D099625992B949F282206ABD07.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>一朵桃花的结构中,能发育成桃的是( )<br>A.花瓣 B.花柱 C.花药 D.子房<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/4329eb67a1c04d3888809ffe6f6ec818/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/e295f4d3b6744b9a81477e22b93c9bf5/5E13BE4736582D3818DE86B5E4C2C389.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>春风暖阳桃花朵朵,桃花结构中能够产生花粉的是( )<br>A.雌蕊 B.雄蕊 C.花瓣 D.花托<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/bc37b8ccaa0e41469f618b3f9a524332/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2f20cdf89df84d8eb8e84e360b8950ff/A22B38318A1660E75A592F375F718CDA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>花是被子植物的生殖器官。一朵桃花的重要结构是( )<br>A.子房和花托 B.花瓣和花柄 C.雄蕊和雌蕊 D.花药和萼片<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2018/21590912704a4669813caf968247e0e6/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2018/91804936b629446cbd6f275753d28643/C2D21A90CEDEA0B36FA00FFAAC8F978B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>黄瓜、南瓜等植株上的一些花并不结果实,菜农把它们称为“谎花”。这些“谎花”不结果实的原因是( )<br>A.雌蕊未受精 B.子房未发育<br>C.这些花是雄花 D.胚珠未发育<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/77b904fbab314e209ca5537d2f6ff5d5/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/fe6ae3a6fac349cf87e6e193dd2ff7ad/A381BD6316D8DA400DA2B8BCB0DC0400.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>从桃花到结出桃子,必须经过的两个生理过程是( )<br>A.开花和传粉 B.开花和受精<br>C.传粉和受精 D.传粉和花粉的萌发<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/edd0543c7d9d4943ba17412bde92b568/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/fb9aca8a18764c90998052a78ba8a0b4/EEAD75977BFDA5678A1585656EAC86E4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>梨肉、杏仁、豌豆荚分别是由下列哪项发育而来的( )<br>A.子房、子房壁、胚珠 B.子房、胚珠、子房壁<br>C.子房壁、胚珠、子房 D.胚珠、子房、子房壁<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/27c731ab50ea4971906e0a09712e15aa/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/ffe85d115b73471088a5b1b7ed823f70/683070A2271898E2A345C279AAE66C0C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列关于水稻的果实、种子、胚之间的包含关系,正确的是( )<br>A.种子>果实>胚 B.种子>胚>果实<br>C.果实>种子>胚 D.果实>胚>种子<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/9f016936b6a040a1ad64b1fb7c5d4521/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/d8618343be2a4a479225d1a211073a6c/985A07E5DFA9C8E39D9468567D86824F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>一个花生中有三粒种子,则形成此花生需要的胚珠数、子房数分别是( )<br>A.3、3 B.1、1 C.3、1 D.1、3<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/960c5d94b7fb4d55bd50228d851bb0d2/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/76c60e4b64924ebf99e90233ed214083/B888D14BA92CD9C6CCDEB00DFFDE263A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>绿色开花植物完成受精作用后,花的各部分发生了明显变化。下列变化中正确的是( )<br>A.子房发育成种子 B.胚珠发育成果实<br>C.受精卵发育成胚 D.子房壁发育成种皮<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/0e1f36d509ea4718b2be79f017db0a70/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ef67a9de65564193ade0143df486da36/FB450C9A373EBD5D6C20EE7C1BE834E9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在果树开花季节,如果遇到阴雨连绵的天气,常常会造成果树减产,这主要是阴雨天气影响了植物的( )<br>A.开花 B.传粉 C.受精 D.结果<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3eff046eedf94a5eabda0f633ad50a38/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f92ab981e30e4e79b679bf2442294003/EF6A7EAAEF2D2BC6D680BCC77362D74B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>秦王桃是陕西省果树研究所经多年研究培育出的一种优质晚熟桃,如图是新鲜秦王桃的剖面图,发育成①和③的结构分别是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/25/113599D47C157537B0A75BF470A48544.png"><br>A.子房和胚珠 B.胚珠和子房壁<br>C.受精卵和子房 D.子房壁和受精卵<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/5dcf017927004002b22cbfbe8a501ff2/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/9b204db0b31f4600b2e52930ed933d78/3C5D85F375C006FD80F8ADD9FD0A61FE.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>下图是花的结构模式图,<br>请据图<br>回答问题。<br><img src="https://picture2.zhihuicn.com/testImage/2/2014/4/16/19AC9D017DFBC1C5C7B5E992DB9FE7C1.png"><br>1.花的雌蕊由[①]、[②]花柱和[③]构成。<br>2.图中④是,它包括花药和花丝两部分。<br>3.花药里的花粉成熟后散发出来落到①上,花受精后整个③发育成,③内的胚珠发育成。<br>4.种子中最主要的结构是(填“胚”或“胚乳”)。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/385390fa06ee46fcb65fd4b67d6347ac/7E475F1AE2878D457E4972ACF59CE02B.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/b896f6eed5a54dc6ae06194314fbd388/3189BB044878A7F780BA6DDA789D16DA.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>如图是植物有性生殖过程示意图,<br>请据图<br>回答问题。<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/6/23/3CEE0FC9C90022021ED26309556FC920.png"><br>1.图中①是,落到雌蕊的柱头上,在黏液的刺激下,萌发长出花粉管,花粉管可以进入②子房内部到达,然后末端破裂,释放出两枚。其中一枚和结合,形成。<br>2.受精以后,②发育成;受精卵发育成。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/f4758b3e39e7478caf8df63d4a783816/9FB37AB08F5CCEF1415D2E82E4569C82.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/e5875983eb2e46bd8cb7fe4294db0cd6/90AD126A357B68B57E77D4CF348FFB39.png"><br><br>
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