2021-2022学年生物人教版七年级上册课课考点通：2.1.2 植物细胞
※题型：单选题※知识点：单选题※试题难度：较易<br>为观察植物细胞的结构,我们用镊子从洋葱鳞片叶的内表皮撕下一小块薄膜制成玻片标本,这种玻片标本叫作( )<br>A.装片 B.涂片<br>C.切片 D.以上说法都可以<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/feb852b7d0c1460c8902eb26f5370c08/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/0df64d9f5d7040f6aad5c6907c1718bf/1C7E793CD38BD5F5D1A90910E735E98E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在显微镜下观察的材料必须薄而透明。李辛同学顺手取了以下几种物品放在显微镜下观察,他能观察到内部结构的是( )<br>A.一根头发 B.一块叶的下表皮<br>C.一块吸水纸 D.一片刀片<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/90264e181c3a41088090724a266d16ea/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/bdd83e35f0b04d90a9cbfc329b33f31e/2DD10D0FF6F02B58A42033C646EAF0A8.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>制作洋葱鳞片叶内表皮细胞临时装片用到的材料和用具有( )<br>①生理盐水<br>②碘液<br>③刀片<br>④吸水纸<br>⑤消毒牙签<br>⑥清水<br>⑦镊子A.①④⑤⑦ B.①②④⑥ C.①⑤⑥⑦ D.②③④⑥⑦<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/ea796bed35044b4e921957885b44e5f4/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/fc8bf95c900046b2b7ded03cac13ed76/C4E645F1E88CF30D2457EE7431691B19.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>使用显微镜观察洋葱表皮细胞,下列操作步骤可能导致出现如图所示现象的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/12/1A1D6E5AFDE1BBAAFCB8B60912F4A3B9.png"><br>A.撕取 B.展平 C.盖片 D.染色<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/6610fdcfa7994fa2bb6684c86c18e0de/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/09c0a6b5b11c4aedaa839cd8eadeeb52/35B9B81A6115B5D053125BFD1F77F18C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在显微镜下观察黄瓜的表皮细胞,看到的图像是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/12/A128B9B0F5C0B35E4CEA3A84BFC9A8B0.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/12/3A5E39D6198DA98FC17ACF387D95DE7E.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/12/A74E9F774C7841C2C872C7E615D842E7.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/12/75713F0A20F8AB7BE71B998456A48870.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2c1ca1dae30f4871801b3259d83732a3/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/820ad118a55145328a100a00a354142f/B187A2FD3D7874B396717034577D2F12.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>植物细胞能保持一定的形态主要是因为( )<br>A.细胞壁的支持作用 B.细胞膜的保护作用<br>C.细胞壁的保护作用 D.细胞膜的支持作用<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/1cce535e1b0245ecab20387361a1e666/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/fe8b47f0ce9f4c4088b01a425de7c178/622126E4E83CD84053D1D3C3B5DB469A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>制作洋葱鳞片叶内表皮细胞临时装片时,错误的操作是( )<br>A.在干净的载玻片中央滴一滴清水<br>B.用镊子把撕下的内表皮在水滴中展平<br>C.取一片盖玻片,使它的一边先接触水滴,再迅速放下,以免产生气泡<br>D.将碘液滴在盖玻片的左侧,然后用吸水纸从对侧引流<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/ba923ffed69044f08319f5e0f46a7c62/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/67257a42e99c445a91cf506520f4cd13/84E7B8CF34EEB99049EF2B398940167E.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>如图是制作洋葱鳞片叶内表皮细胞临时装片的步骤,请根据图示回答问题。<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/1/22/E857579EAFC21438BAFDDFEB2AD8B8D9.png"><br>1.图①中,在载玻片中央滴加的液体是。<br>2.在制作临时装片时,必须用镊子将内表皮展平。其目的是。A.防止细胞重叠 B.防止水溢出3.在图③盖盖玻片的操作中,如果方法不恰当,很容易出现气泡,影响观察效果。下列四种盖盖玻片的方法中(图中半扁圆形结构代表水滴,箭头代表盖盖玻片的方向),最不容易出现气泡的是。<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/22/EDD4DFB8E6EA917962D810341AF8C65B.png"><br> 4.使用显微镜观察细胞时,看到细胞中间近似球形被染色较深的结构是。<br>5.用显微镜观察时,图中的【①】和【②】有放大作用,其中【②】是。<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/22/4EE75B8B0E97303BE9E98938830355D5.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/954af189a527454599a0bbfd51133b8f/1F2E7CD4D954B8CDC810B95086DA1496.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/50260a54014842e283798a6c808a7bac/FA47F84084FA67C11B86F57E8D34EC8E.png"><br><br>
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