2021-2022学年八年级上册生物人教版每节一练:5.4.2细菌
※题型:单选题※知识点:单选题※试题难度:中等<br>细菌是一类体积微小、结构简单的单细胞生物。观察细菌的形态常借助于( )<br>A.放大镜 B.低倍显微镜 C.高倍显微镜 D.肉眼<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/61641bba112d4f8296fca30e8e444852/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a602adaf196b4df1b16783bc489b7180/90F9F1169B0170A9923497A3273AA9EE.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>世界上第一个发现细菌的科学家是( )<br>A.罗伯特·虎克 B.巴斯德<br>C.列文虎克 D.弗莱明<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/b9382ac955da47c88032c89aacf39985/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/d43a8037798c45a6b1efe8805621ce26/A1A7BF173BF5A98A6BD04A97C889258C.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>巴斯德试验中,实验变量是( )<br>A.烧瓶的直颈和曲颈 B.空气<br>C.有无微生物进入 D.温度<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2015/8195624890594a02a6bddc2d9c79e208/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2015/2684c870c3bc4d0fb6c14132ab0d42b1/DF20A710714C0734069375824D2C7266.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>被称为“微生物学之父”的是( )<br>A.巴斯德 B.列文·虎克<br>C.罗伯特·虎克 D.达尔文<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/63e505933e8741f5879ced845bba52e4/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/12e490ae524a4b1581ce28cf08e849b8/3368140093C4109BE6E2C71BFD2A61CD.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>如图单细胞生物结构示意图中,表示细菌的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/28/B5B1AB1DB2112C246D0A99833F4D29F6.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/28/69B395ECA7140319365EF6528667441C.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/28/761881AB1D8F32BCF99057C7A61B4F83.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/28/EFD7492232F8A5BCF1A7CD7CCF8161EB.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/6f29331b203a45128bbe3dd4876f95bc/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/9558cb4e7c304427b883e624fb39ad57/B094506B6B3F337F7E5AE20B4C595E82.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>幽门螺杆菌是寄生在人体胃内的一种细菌,可能引起胃癌,对其描述正确的是( )<br>A.用孢子繁殖 B.自己制造有机物<br>C.是多细胞生物 D.无成形的细胞核<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a16426461fb7448497c832eb1d0f2bd0/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ca7002e6a62c468091b7d6f0b3c26d03/D0288C2969D8EAFBFF13DEA4372F8813.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>下列哪项与细菌分布广泛无关( )<br>A.个体十分微小 B.进行分裂生殖<br>C.能形成休眠体芽孢 D.没有成形的细胞核<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/8e56fa718810470b8a7c835167a62c76/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/1ee87e479fc44038867ab3d5603cb06d/354299EF86E6C3413E2A16BFE3337E01.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>勤洗手是良好的卫生习惯,因为细菌的繁殖速度非常快,若在适宜的环境里,某种细菌每20分钟分裂一次。在这种情况下,10个这种细菌1个小时后将变成( )<br>A.10×2个 B.10×8个 C.10×32个 D.10×64个<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/56e3ebcdf37d4e648663d641596a714d/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/c3b7013540384e60adaed16e495ca76d/986DB252E65FDE3EF4A996D3F882F6A9.png"><br><br>※题型:填空题※知识点:填空题※试题难度:较易<br>如图为细菌的结构示意图<br>据图回答下列问题<br>([ <br>]<br>中填字母<br>)<br>(1)<br>细菌中<br>DNA<br>集中的区域是<br>[<br>],<br>它和动植物细胞主要区别在于它没有成形的<br>(2)<br>是细菌的休眠体<br>对不良环境有较强的抵抗能力。<br>(<br>3)<br>在电镜下可以清楚地看到细菌的形态。根据形态,一般将细菌分为<br>菌、<br>菌和<br>菌。<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/5/13/66AA8711A36C97E2BCE54E5449A37A83.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/8b07151f5f5f452980e421c48e3659ba/9ED9F900D1EB368960682E32824CFA4E.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/46a330111b0c4e16aaf90b0d07d644dc/9B5293FB611664FE12DCBD93F198EB02.png"><br><br>
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