2.3.1细胞的基本结构和功能第2课时2021-2022学年生物北师大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：较易<br>在制作人口腔上皮细胞临时装片时,刮取细胞的部位和染色的液体分别是( )<br>A.口腔内侧壁、生理盐水 B.牙缝、稀碘液<br>C.口腔内侧壁、稀碘液 D.牙缝、生理盐水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/c8d1062e4fe349c28a3eba465158b6b9/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/5127a4fa421046d8a591a5b8f83b0b32/EB7C63ECE9B861E635243405E0C4EC73.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>若想制作人的口腔上皮细胞临时装片,应在载玻片的中央滴一滴( )<br>A.蒸馏水 B.清水 C.生理盐水 D.稀碘液<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/ad0ffcf16de9406cadbf39541c1812d4/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/623d94257a0d4d36ad0ce6beb2883e72/DF31FC796AE5F7459FC9FEEA6301CA09.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>如图是制作人口腔上皮细胞临时装片的流程图,括号中依次应该填写的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/5/15/FDD81ED642D6FD7EAA5A97E87B32B57E.png"><br>A.滴、染、涂 B.染、涂、滴 C.涂、滴、染 D.滴、涂、染<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/35e3497358a4499eb31c7cad496c6dea/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/eb8b28579bac4b4abae2abfc9aa1402c/18A80805A4E44A0E9F48913DA679B20B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>关于观察人口腔上皮细胞实验的叙述,不正确的是( )<br>A.在载玻片中央滴加生理盐水<br>B.碘液染色有利于观察<br>C.应先用低倍镜进行观察<br>D.能观察到细胞壁<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2018/2e97b8ae82e44cfbb9c0ce67b9cbbdde/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2018/96e7754129e64fa3ae11b1dd97bb1000/A804C98BCAAFBA84C7F983A9C9539E91.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>制作和观察“人体口腔上皮细胞临时装片”时,以下操作正确的是( )<br>A.在洁净的载玻片中央滴一滴清水<br>B.把牙签上附着的碎屑轻涂抹在液滴中<br>C.先用碘液染色,然后盖上盖玻片<br>D.观察到的细胞绘图后,发现不够美观,做了修改<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/43f12135c71241cd8214ad91a8f420d2/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/10976213864e49e198d85651d59b5807/07A642CD58E670436B83B92FA8F2412B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图,用显微镜观察“人体口腔上皮细胞”临时装片,在不同的放大倍数下,观察到甲、乙视野。下列描述正确的是( )<img A.图中显微镜的最大放大倍数为56倍<br>B.要由甲视野到乙视野,首先应将装片向左移动<br>C.甲视野的放大倍数比乙大<br>D.外界光线弱时,使用较小光圈和平面镜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/63db5a7e6de941b4a01d463b17cafc85/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f78bd685d13647adaae9aa0a96b7c5e0/502F823C530E48BBFE9168677FB127B3.png"><br><br>
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