2021-2022学年生物人教版七年级上册小题狂练：2.2.4 单细胞生物
※题型：单选题※知识点：单选题※试题难度：中等<br>下列关于草履虫的叙述错误的是( )<br>A.通过细胞分裂形成新个体<br>B.利用鞭毛实现自由运动<br>C.通过口沟摄取食物<br>D.通过表膜与外界进行气体交换<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/92374970041d4ea380bf298c2ef85935/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/d0eba06027984f92bb09368ff0d414d3/DD5D6B40C22DF81118AE74E0AEB12F7B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下图是在显微镜下观察到的草履虫结构示意图,草履虫运动和取食的结构分别是( )<img src="https://picture2.zhihuicn.com/testImage/2/2014/7/15/71C352DF25954AFEA04428D36CDA5C5E.png"><br>A.1和3 B.2和6 C.4和2 D.4和3<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/276f348f5d584dc1a345f37d40432bca/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/8b197d9b95454042b89900ee9286cc63/7375CD56D56C12BBD68DB12FAD868828.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列有关草履虫的叙述,错误的是( )<br>A.外形像倒置的草鞋<br>B.身体由多个细胞构成<br>C.能对外界的刺激作出反应<br>D.对污水净化有一定作用<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/e9aaad7532de42738c3d80bb50f4d02e/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：较易<br>下图是某同学在显微镜下观察到草履虫图像,则草履虫在临时装片上的形状是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/6/25/CE960F5110CD75F460F855D063C20BC2.png"><br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2019/6/25/C28F71B4D596DC0CB55FEFE013EDC0FC.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2019/6/25/BCFF1ED653FE90335DE32B2C225D238E.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2019/6/25/AE2D1123CEF9C9FC46D771C655DBB1EB.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2019/6/25/10CE8CA0B006B64ADE70D27921F9F8CF.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/eeeced73d5884794b264dee8efe2e251/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/8896664d839546a394261affb545cbc9/C6BAD27AA7A664E81BF6AEB81C75AE01.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时,你不能观察到的是( )<br>A.外形略像倒置的草鞋<br>B.身体只由一个细胞构成<br>C.能避开棉花纤维的阻挡<br>D.通过表膜吸入氧气,呼出二氧化碳<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/872851a5fb1f4ff49ae86e9a5cc51e39/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ca6074b552384f4fa862c23fd9ae0498/93A13632F76F9A615787C4E034837516.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>一些草履虫装入富含有机物溶液的试管中,一段时间后,图中能正确表示草履虫的分布的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/13/E666718D71D7FF4F2D4BD491F28B2F63.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/13/BC885F24EE39FC5F5C3BE8E00725B866.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/13/9B7644E10C844191303E8E7625492627.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/13/7724EB7CC7410FFB18EB3ABCDB8E97E9.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/cec6fd0d732c4fcbad3125081ebaa39f/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/4e879e436ac746058bd5541f6e5e1f18/511CC7FFBC849672E087064CF9C48C4F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是一面玻片上相互连通的草履虫培养液,在A端加入牛肉汁,草履虫将如何运动( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/13/7EED3BC4A3618763D5C320A7CB9DE529.png"><br>A.从B到A B.在A、B之间 C.不动 D.从A到B<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/60326982a9f1480ebd83a8f8286c507e/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ba9f4d56642e4486bdfb2720fd38b228/3162CFF8CA5F7AA3A954740A90FA6AFD.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列对“探究草履虫对刺激的反应”实验的相关说法中,错误的是( )<br>A.实验主要运用的科学探究方法是实验法<br>B.实验目的是说明细胞是生命活动的基本单位<br>C.该实验能够说明草履虫能对外界刺激作出反应<br>D.将实验动物换成“水蚤”(一种多细胞动物),一样能达到实验目的<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/56b1825aa5614635885a10f3c0ee790f/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/57ced47b3c6841f8ad2eecd78d74ded6/8EFD72A1F8CC91216664E362372FF7F2.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在“观察草履虫”实验中,从培养液的表层吸一滴培养液的原因是( )<br>A.表层含氧量高,草履虫比较集中<br>B.表层营养丰富<br>C.草履虫有趋光性,分布在表层<br>D.草履虫身体轻,漂浮在表层<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/c93ec2ad98694d54b6795888efa8c186/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/95ce404baf554c45964344a3f3a835f5/0A6100F768EC71CD24526CAE396D0AA6.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>比较草履虫与衣藻,下列有关叙述正确的是( )<br>①都是单细胞生物②都能在净化污水中起作用③能量转换器都是叶绿体④都有细胞壁、叶绿体、液泡⑤都有细胞核,细胞核中含有遗传物质A.①⑤ B.②③ C.①④ D.③⑤<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/772abf1fd9824aa7954da12e36a26104/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/270351f920354bdfb1af79b1d00b2590/A0F8138D938E3F5341CD4A7E06492475.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>变形虫是单细胞生物,虽结构简单,但能表现出一系列的生命活动。下列关于变形虫生命活动的叙述,错误的是( )<br>A.细胞壁对细胞有支持和保护作用<br>B.细胞膜具有进行物质交换的功能<br>C.线粒体为生命活动提供能量<br>D.细胞核对细胞生命活动起控制作用<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/0a649c02039b4cc3a30b313c28965940/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/1003cf5f108048dbb1992000ab0cd6d1/3509659580440DA2640D0889AC460C92.png"><br><br>
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