2020-2021学年生物北师大版七年级上册同步实验室（二十九）探究种子的营养成分
※题型：单选题※知识点：单选题※试题难度：中等<br>我们吃的花生油,主要来自种子内的( )<br>A.胚芽 B.胚轴 C.子叶 D.胚乳<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/6137a00ae5b747c7a134baef8f9c5c55/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/79d43eea7b814f6390d64cb5a506c73a/7D2D265A9DA5CCAB11CC21384CF8172C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>我们吃的大米主要来自水稻种子的( )<br>A.胚 B.子叶 C.胚乳 D.种皮<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2018/3e9b8ae07cd04c3686f0b2649ba2d511/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2018/5acbd8bf46a24c638893b9afe45dbc03/153C27D8B5BD4468A66042A367832D50.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>日常生活中食用的香油是由芝麻种子加工而成,这说明芝麻种子含有较多的( )<br>A.脂肪 B.无机盐 C.淀粉 D.蛋白质<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2016/a6a23e91ccd4435eb58acb91a4f05eb4/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2016/57d3203d608d44419aad2765d04926b6/7CDE873CA59DC5B813BFA0BB2BB68B63.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>用纱布包裹着面粉团在清水里揉挤,最后在纱布内剩下的胶黏物质是( )<br>A.脂肪 B.无机盐 C.淀粉 D.蛋白质<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/0E814C59506B621455B6220847BA094C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>将浸软的小麦种子放在酒精灯上燃烧,直到剩下灰白色的物质为止.灰白色物质的成分是( )<br>A.水 B.蛋白质 C.无机盐 D.淀粉<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/06CA15E9E37149AE5CBDA29B610AEA54.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>可以用碘液检测小麦种子中的营养成分及发生的颜色反应分别是( )<br>A.淀粉 蓝色<br>B.脂肪 蓝色<br>C.蛋白质 红褐色<br>D.淀粉 红褐色<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/723FCD1A90ECC239CAB044EA722A48C3.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列哪一组植物的种子营养物质储存在胚乳里( )<br>①小麦②花生③西瓜④高粱⑤玉米A.①②③ B.②③④ C.③④⑤ D.①④⑤<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/e552d79704ea4192a72420a98647cf2b/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/35c283c36b4d404ca8690579d17bef78/FEAD086CCC517EC4162060D08313C357.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在白纸上用力挤压炒熟的花生种子,发现有油渍,这一现象说明( )<br>A.花生种子里有蛋白质<br>B.花生种子里含有脂肪<br>C.花生种子的主要成分是淀粉<br>D.花生种子含有糖类<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/f6d274bdb5ff47d98fe7593cc8893516/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/663cc61789314acdaa46e8f5f6ae6d3e/69B9049612D21FC591923393B435830D.png"><br><br>
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