3.2.1种子的萌发第2课时2021-2022学年生物人教版七年级上册随堂小测
※题型：单选题※知识点：单选题※试题难度：中等<br>黄豆芽营养丰富,其食用部分主要是由种子的( )<br>A.胚乳发育 B.胚根发育 C.胚芽发育 D.胚轴发育<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/1e49fbc40b5e49cfaf5337972e6f3952/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/09f5e3127b444710ac65678ce8d9a122/2DCCB9A7812917BD85FCD709C00C8A9F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>粮仓中存放了十年的小麦种子虽给予适宜条件,一般也不能萌发,其原因是( )<br>A.种子仍处于休眠期 B.种子已过寿命期而死亡<br>C.种子的种皮太厚 D.种子因受抑制而不能萌发<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/35c6e8534945403a88ee7c1a0c22b200/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/448ee2dfa876488cbcb36ce3d42df3b0/52C2846A5BE838787D33D0D0C02FC2E8.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>种子的休眠是指( )<br>A.由于外界条件不适宜,种子失去了萌发能力<br>B.种子里的胚已经死亡<br>C.成熟的种子中,胚虽是活的,外界条件也适宜,但不立即萌发的现象<br>D.成熟的种子中,胚虽是活的,外界条件不适宜,故不立即萌发的现象<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/f603efc29dfd418292c436c351a6ed75/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b2b7f712f5a74305b0acf73679f73228/1208F0F03759DC4AFD0B4DC5AEFBD0A0.png"><br><br>※题型：读图填空题※知识点：读图填空题※试题难度：较易<br>下图是菜豆种子和幼苗模式图。<br>请据图<br>回答下列问题。<br><img src="https://picture2.zhihuicn.com/testImage/2/2019/6/25/7CDA1C1939E42AEDDEF68DD2AC11D0FC.png"><br>1.菜豆种子的主要部分是[],它是由(填标号)构成。<br>2.菜豆种子含有的营养物质储藏在[]中。<br>3.将来发育成幼苗的[]和[];由发育而成。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/d6f31e3019e04fd2a3133f54998f2707/BF88BA7311F525210D5909A09BE8CA78.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/14883722cb024d64aae0b8dcdfbdcce5/408A53D23F23120B89E271DFDC1F2AB7.png"><br><br>
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