第2单元 第一章——2021-2022学年人教版生物七年级上册单元易错题速练
※题型：单选题※知识点：单选题※试题难度：中等<br>在显微镜对光时,当环境光线较暗,应选用( )<br>A.大光圈、凹面镜 B.大光圈、平面镜<br>C.小光圈、凹面镜 D.小光圈、平面镜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/632c2dd77bc14e269631ce26b9dce1f6/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b7d085d8acd145c58141eccddf2bff6e/E01613F1A93EEAE5525CE781E3457759.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>用显微镜观察紫色洋葱鳞片叶表皮细胞玻片标本时,目镜不变,物镜由10×转换成40×,视野的变化是( )<br>A.变亮 B.细胞数目增多<br>C.颜色变深 D.标本图像范围变小<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/4d8f7e2ccf62431386a82f1e2a7f9085/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/833eb50c586c461d8e1ece66b9e728ca/08BBDF7AC686505B60B4D40F037360F8.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>显微镜下观察到的物像在视野的左上方,要将其移到视野中央,玻片标本移动的方向是向( )<br>A.右下方 B.左下方 C.右上方 D.左上方<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/37628b2bc7e749d3a1e586a4b11d61d8/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/4f6842062c3845f4917fb33231d25170/7F09D72C6EECC026E9AA3E44F4DE790C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图显示的是显微镜的操作步骤,正确的顺序是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/6/24/16CED503FC554624056DEC9BD96D5B2B.png"><br>A.①→②→③ B.①→③→② C.②→③→① D.②→①→③<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/01346a116e18490ba307f6d7c8ec3051/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/30b8a203eb10401aa53434fdda6b5808/C66C11EEE9D5E3B26E6683924E5FE1F1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列盖盖玻片方法正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/26/AFAC99AEBDFD566244773CA695461DCB.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/26/F21798DF58BE143FECA7174E539356D4.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/26/98E269996CF1EA05BB595444C3A6974A.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/26/E43F9083E1D91CB1EE1E888F1022DD38.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/0bdafb9113164d48925fc1d60b1c7d67/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ef4125995b974be3aa9f577e7b1b3d13/E6C00F2EEE90C309583BC7E62BFFB6FC.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在制作人的口腔上皮细胞、洋葱鳞片叶表皮细胞临时装片时,在载玻片上分别滴加的液体和它们染色共用的液体依次是( )<br>A.碘液、清水、清水<br>B.生理盐水、清水、碘液<br>C.清水、生理盐水、碘液<br>D.碘液、生理盐水、碘液<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/c4af7e98066f4aac93a151ad79bcd50d/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/525f3ee56d404868a6abdefaae17dcc1/BD2BCE7B4D15DF59FCB556C3FBDA6976.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>桃花的花瓣是红色的、榕树的叶子是绿色的、洋葱鳞片叶外表皮是紫色的,与这些颜色相对应的色素分别存在于细胞中的( )<br>A.细胞膜、线粒体、叶绿体<br>B.液泡、叶绿体、细胞膜<br>C.细胞膜、叶绿体、液泡<br>D.液泡、叶绿体、液泡<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/9387b14fa2f34308b1358a09c8168628/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/af2c565848f44895ae17be49cc685ca8/17763FA9C2AACAB0FB3FA76326120773.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>埃及考古学家通过对DNA进行比对,破解了千古之谜——古埃及法老图坦卡蒙的死因,这位3000多年前的统治者是因免疫力低下最终死于疟疾。其依据是生物体内的遗传信息主要储存在( )<br>A.细胞壁内的纤维素中 B.细胞膜内的蛋白质中<br>C.细胞质内的糖类物质中 D.细胞核内的DNA中<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a3b91fb629f04f9b9f65143857b719b8/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a473e772cd324ada8412e32b24ad148f/BB49C1F9189B4F2DA22354211B3B384B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列关于细胞质的叙述,错误的是( )<br>A.细胞质内含有细胞液<br>B.细胞核周围充满细胞质<br>C.细胞质中有细胞器<br>D.细胞质具有黏稠和透明的特征<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/CE61A95786A6607329727616CAE2C95E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>某课外兴趣小组的同学用显微镜观察池塘水时,发现水中有一种再生能力较强的喇叭虫,若将它切成如图所示的①②③三部分,其中能再生成喇叭虫的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/18/8313EB4548C0394D135F69A9D164DA94.png"><br>A.① B.② C.③ D.①②③<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/9412ce15a6ab407dad59c111b3eb7928/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/7ef611cf2c204a6c944677eccb67dd2d/2DEB3FF307447BE68C958787CA8A3623.png"><br><br>
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