2021-2022学年七年级上册生物人教版每节一练：2.2.4单细胞生物（基础题）
※题型：单选题※知识点：单选题※试题难度：中等<br>下列哪种生物属于单细胞生物( )<br>A.蜗牛 B.草履虫 C.蚯蚓 D.蛔虫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/771661bc838f42b0a21271d2d2b9fed7/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/98bc4975f2ad40239a06e3347a92a2af/8DF961C401F8917200167CB9E19E2955.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列不属于单细胞生物的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/22/0DC8FBEB44B2521E5B156A2BF0BF304F.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/22/5EACD8BED4A0F988BA2B59B3C5677EA1.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/22/19A2E2BD640F606EAC5612A3077195CE.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/22/528D59C891A7567A0A7C36EA812FB2F3.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/5469381c0a054291960340c143c060d9/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/c0ddbcee251c491b828dc023422ea37a/4023A7D3E7F244B3A4A6CFC558C4876E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>草履虫进行呼吸的结构是( )<br>A.纤毛 B.伸缩泡 C.表膜 D.收集管<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/af21e849f90540318d3aa175534aebab/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/43b009563ea8444da864463d05a4a954/A6D55B7B7BAFC1F5C4499F421009699C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>草履虫把产生的废物排出体外的途径是( )<br>A.口沟 B.胞肛<br>C.食物泡 D.伸缩泡、收集管和表膜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/dcfd7aecaa264ab6bf7db4a5af3fd019/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ce243fa455b74aec805461a435a63697/5F644683ACC9BADFFF92F527E9B5F6BD.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>草履虫是单细胞动物,不会发生哪种生命现象( )<br>A.呼吸 B.消化 C.排出废物 D.细胞分化<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/8b37f1748dfc4d448eb45d9220f2dcf0/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2fbbd255d4684c2485d94c8a36b741d0/128AC25252F02BBAD194B7682088C1F6.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>草履虫的取食、消化、排出过程是( )<br>A.口沟→细胞质→胞肛 B.口沟→食物泡→胞肛<br>C.口沟→细胞质→表膜 D.表膜→食物泡→表膜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/46242f3d35b54a4899b28fe4e15a5343/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/2f080d3df21d4fcbb9b5acf3738fee6f/CDA88B0A28E16A507C29E87EEAC4264D.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>与草履虫的基本结构相似的是( )<br>A.放线菌 B.洋葱表皮细胞<br>C.人口腔上皮细胞 D.大肠杆菌<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/cc37590009f54561b10b1dc59e4dc20f/B01B9AD1709CC523F9D63862305777A8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/48503ddec7124d15b58587cd659e20a7/9F12B7F462DA0A68E35991C8A082A98F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>草履虫在显微镜下有时会呈现绿色,这是因为( )<br>A.含有叶绿体 B.食物中有绿色藻类<br>C.含有叶绿素 D.折光的结果<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/19cf929c571144b0ba70b5cbe234ab60/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/db59392b6b714eb388149c8ce38147fd/9492EAF2D0C7ADFD4E138FF9E3FEA6CD.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>草履虫能够在水中旋转,依靠的结构是( )<br>A.细胞核 B.纤毛 C.细胞质 D.表膜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/e3a304e0670141c9aaf0faf94c189a53/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/6480844b07414f7f9dc2dae350fba03b/476BD34945CBF7051BC859048557BE01.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在观察草履虫的实验中,吸取草履虫培养液时,吸取的是培养液( )<br>A.表层 B.中层 C.下层 D.各层均可<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/311e249c75c642e894981c2743393a87/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/490948e6f63f4270a200e99cef16d1e2/C1C12DA4DCC011F09D0C743686ADCD18.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在显微镜下观察草履虫,应在载玻片的液滴上放几丝棉花纤维,这是为了( )<br>A.供草履虫附着 B.为草履虫提供食物<br>C.限制草履虫的运动 D.利于草履虫的呼吸<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/e09a26102b57496eb657f0982af9b741/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/edcd0a8103a44afab68fdec9cc6e9508/C9365E2282F448D6D67C21646F968F73.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>为探究草履虫对刺激反应,某同学制作了如图的临时装片,观察草履虫的运动方向,发现草履虫的运动方向是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/5/15/A82046B145CE66E7674216B4A2FC5898.jpeg"><br>A.从左向右运动 B.从右向左运动<br>C.来来回回运动 D.不运动<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/935f198df9c74630b60f4b533929cc0f/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/234b8702909f4a5dbc25638075c048f7/A69E8D1DF33042B98126DC167CF903EB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列单细胞生物中,对污水有净化作用的是( )<br>A.大肠杆菌 B.酵母菌 C.草履虫 D.衣藻<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/6ed22c34b80144c1aa66243f49afcf25/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/7699a84517aa45d58f005cdee1d15d15/AFB2DFEA8A1D72766C89A7F227B7E4B2.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>如图为草履虫的结构模式图,<br>请据图<br>回答下列问题:<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/8/13/D674332293661E821D5D1CD8A49E58FE.png"><br>1.草履虫摄入氧和排出二氧化碳都通过图中标号所示结构完成,排出多余的水分和废物主要是通过图中标号所示结构完成的。<br>2.草履虫结构简单,属于生物,一只草履虫每天大约能够吞食43000个细菌,说明它对污水有一定的作用。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/4b91f47a9f8846ed9946ed2aeb06f5fb/D827F75BB71C6D4772715A6083D09E5F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a996bafbcde74409a0e85f6c5f427121/9D6F632ED4063690C626B4B1240B0DF6.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>结合如图所示生物,回答问题:<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/8/13/EE80BF48490B485C1C0DBC6BFD173B19.png"><br>1.需借助来观察这些生物的内部结构。<br>2.它们都属于生物,A的名称是,C的名称是。B因其细胞内含有而呈绿色。<br>3.上述生物中具有细胞壁的是。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/34cac119ef94463daedf2a248800deb0/FF514108265CB9A151CE30E3FE499B94.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d09398843d624136b3106a9182f4aa95/20B685156D28169465B306C1931635EB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>形成“赤潮”的生物主要是( )<br>A.细菌 B.真菌 C.死亡的鱼虾 D.单细胞藻类<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/43fbac6e270a41b48d213c4a917809c4/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/0c5949153a1c467bb897cc6b8769191a/503C28585B626F1114F79BB6C6C5202A.png"><br><br>
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