admins 发表于 2021-8-20 22:56:13

江苏省普通高中2019-2020学年高二学业水平合格性考试模拟(二)生物试卷

※题型:单选题※知识点:单选题※试题难度:较易<br>下列物质中,属于动物体内多糖的是(&nbsp;&nbsp;)<br>A.葡萄糖&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.淀粉&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.乳糖&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.糖原<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2012/c8ab422d2bcd49b6a39fb6fb02098c8f/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2012/f36c74133ec84980a12016220bb06f43/15A1E5C1B15CCCBAFF6F6E9D0736AEAD.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>某蛋白质分子由100个氨基酸组成,含2条肽链,则在氨基酸脱水缩合形成该蛋白质的过程中产生的水分子个数为(&nbsp;&nbsp;)<br>A.1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.98&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.99<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2015/8f3a82cc8a7940b59c4fc784f5b4dd1e/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2015/0653572b163a49b7994a0f53115358ce/50979082294ED36DA9A199373211CA3B.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>组成DNA分子的基本单位是(&nbsp;)<br>A.脱氧核苷酸&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.核糖核苷酸&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.氨基酸&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.核糖<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/be1a0b534d0f46079f0295cc3eea63d7/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/083d0402e875448eaac95ff11ddb1a99/025972191E8BEF4336302E994CB62D2C.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列生物中,属于原核生物的是(&nbsp;)<br>A.水稻&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.乳酸菌&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.酵母菌&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.蚯蚓<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/5621d76dd148450dbdb42314f316f18a/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/77087515dd53467590f35e5450b8fa9a/96229FA2EDCA8F65B4E9147BC5AE466D.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>如图是某种物质跨膜运输方式的示意图,该运输方式是(&nbsp;)<imgA.自由(简单)扩散&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.协助扩散<br>C.主动运输&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.被动运输<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/aba92c777fdc4fb9884e3a2c26211b67/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/5656380452c04d8ab0ed4854dc78239b/FC7408EF92748BE48BD46721B03242F4.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>细胞膜的成分中含量最丰富的脂质是(&nbsp;)<br>A.脂肪&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.磷脂&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.胆固醇&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.维生素D<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2011/df9e459a277c465aa8110b7ec4f0f2ce/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2011/ff7abd0c4f1c4490861f5ca5bc3b7771/4AB822728359F2E4636ACF430B073644.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>大肠杆菌和酵母菌在结构上的主要区别是大肠杆菌没有(&nbsp;&nbsp;)<br>A.细胞壁&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.细胞膜&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.核糖体&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.核膜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2011/313d3026f1eb4ebd8c00143cfd2a3789/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2011/ed7f395a92f346e59f5add467b18561f/BE800B8BFF129073F57F5BF01083B715.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>人体红细胞以主动运输方式吸收的物质是(&nbsp;)<br>A.H<sub>2</sub>O&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.O<sub>2</sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.甘油&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.K<sup>+</sup><br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/2a324997b7804e699ce232bf402a80ba/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/8ba128b91fa14468a601badfc5707123/E4A887ADFBD27C9FA91B8E94922DC19A.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>若人体唾液淀粉酶反应体系的温度从15℃上升至25℃,唾液淀粉酶的活性将(&nbsp;&nbsp;)<br>A.增大&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.减小<br>C.不变&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.先增大后减小<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2011/f1d9e1c747ff406684952e586801c2c6/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2011/ccf1eacc43664d8baf6fbfb2077add5a/64298A4AC37B1004B8F36030FFCFE27B.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>蛋白质是生命活动的主要承担者,下列不属于组成蛋白质的氨基酸是(&nbsp;&nbsp;)&nbsp;A.<img src="https://picture2.zhihuicn.com/testImage/1/2017/12/18/04415A08FD90E4095E3E50BBDEB6728A.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/1/2017/12/18/B9FC25ECBADA04673EE1514A5077D9F7.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/1/2017/12/18/20EF0D836FA71657EFC61240779FFAB9.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/1/2017/12/18/F0898387BB3F998F79EF04C8D01B6C70.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2017/708c0229522a40e089ff8ad63e0ba850/CB10E80A5A739A58F1312BA12F379467.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>细胞有氧呼吸过程的三个阶段中都产生的物质是(&nbsp;&nbsp;)<br>A.ATP&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.CO<sub>2</sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.丙酮酸<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2017/736433231c5443848dc66c17b6214ed1/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2017/07fbb44326e94723b394c5dd7d82cc13/9A0DDB0A61D0BD2A61A480BA10BEFB2D.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下表为不同种类细胞的细胞周期持续时间(t/h)据表分析,相关叙述错误的是(&nbsp;&nbsp;)<br><tbody><br>细胞类型<br>分裂间期<br>分裂期<br>细胞周期<br>甲<br>15.3<br>2.0<br>17.3<br>乙<br>13.5<br>1.8<br>15.3<br>丙<br>21<br>1<br>22<br>丁<br>20.5<br>1.5<br>22<br></tbody><br>A.一个细胞周期包括分裂间期和分裂期<br>B.甲细胞分裂期的时间比丁细胞的长<br>C.细胞周期中分裂间期的时间比分裂期的长<br>D.观察有丝分裂过程时选择丙类型的细胞最好<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2015/72828ccbc8674aea8509f3074af57b24/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2015/49f0fdf7da704a39b31d665efae5f564/762137EA2160628F1076A171C6C8582E.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列关于细胞内ATP的叙述中,正确的是(&nbsp;)<br>A.每个ATP分子含有3个高能磷酸键<br>B.每个ATP分子含有2个磷酸基团<br>C.ATP直接为细胞的生命活动提供能量<br>D.ATP与ADP的相互转化和能量无关<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/583db7f59dbe4748a15e01634e70b40d/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/fd5f6af76ebf4d34ad21939e840b2961/6221026E1DACB9E217B98126EBF03E4A.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列关于光合作用过程的叙述中,正确的是(&nbsp;)<br>A.光反应离不开色素的作用<br>B.暗反应必须在黑暗的条件下进行<br>C.光反应为暗反应提供、ATP和CO<sub>2</sub><br>D.暗反应的产物是氧气和有机物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2011/1c7a2c8987c9444780bf5a1bd44ee8b0/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2011/cbd369d0bf104046b872781ba9d2e0cc/75F4DDEEEDC44C6993292F3C8839AB03.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>已知某个DNA分子的一条链中,碱基A有4000个,碱基C有5000个,则在其互补链中碱基G和碱基T的个数分别是(&nbsp;&nbsp;&nbsp;)<br>A.4000、4000&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.5000、5000&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.4000、5000&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.5000、4000<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2018/66e86fd59c564bb4a7a1c7d29da81491/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2018/0e15773e299d47cfaa4dacd6a699327b/436077206AEA900CAF9D9091CDDF4E76.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列关于DNA和基因的叙述中,错误的是(&nbsp;)<br>A.DNA分子具有特异性<br>B.DNA分子具有多样性<br>C.基因是具有遗传效应的DNA片段<br>D.基因中磷酸和脱氧核糖形成的序列蕴含着遗传信息<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2011/b375a42c980f4a6181962b8146dc7a96/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2011/193e7177f2b7443c9b947215e5cceec3/63563AF876418271B0713CB5FE73EDD2.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>用<sup>32</sup>P标记一个DNA分子的两条链,让该DNA分子在<sup>31</sup>P的培养液中连续复制4次,则含<sup>32</sup>P的子代DNA分子个数是(&nbsp;&nbsp;)<br>A.1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.8&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.16<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2014/83a185b8871b4aa9917bb43c38053fca/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2014/944b7737bf4641d88f30e19aa19d0b62/380A7E850BDF0A8069D17E5E7AB92783.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>某DNA分子的一条链中碱基C占该链碱基的比例为36%,则在以其为模版转录而成的mRNA中碱基G所占比例为(&nbsp;)<br>A.18%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.36%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.50%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.64%<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/4b73817693364962a174cd04048850e4/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/8cc3518f78944bacab485b6a55f75d66/50AA321C6FF6AFFECF49569D144AB279.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>真核生物的形状从根本上来说决定于(&nbsp;&nbsp;)<br>A.tRNA上碱基的排列顺序<br>B.mRNA上碱基的排列顺序<br>C.DNA上碱基的排列顺序<br>D.构成蛋白质的氨基酸的排列顺序<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/9b3815e729274ef79507d8133c13c29d/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/5e94a936e3804d71bfe3faa429263114/D5C1FE98E3CC090797C24FC5DE70595A.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列物质中与DNA复制无关的是(&nbsp;&nbsp;&nbsp;)<br>A.ATP&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.DNA的两条模板链<br>C.解旋酶&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.尿嘧啶核糖核苷酸<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2018/6e6e9d0ae1bd42ba8da83c69d3b29827/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2018/3e3fe6d6096c4c5ea3f9baa8625b702a/9B6AEC212AB8F1F38CAB855416EA745F.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列有关基因突变的叙述,正确的是(&nbsp;)<br>A.若体细胞发生突变,一定不能传递给后代<br>B.基因突变可发生在个体发育的不同时期<br>C.若没有外界诱发因素的作用,生物不会发生基因突变<br>D.基因突变是指mRNA上的碱基对的替换、增添和缺失<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2011/99c2d7a9adc74024a5d275f7bf63194c/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2011/e49d2d9ddd1e4036a1d67f9deb9b7f39/606348332F47B59B0D44C7DCCD471143.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>现代生物进化论理论认为生物进化的基本单位是(&nbsp;&nbsp;)<br>A.细胞&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.个体&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.种群&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.群落<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2011/7bcbcf2820804c288ffe5becadc89d7c/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2011/ab0ab62efd7944b9844442e251136ed6/B45BF5EAA26DF4345B6C270B8C833B76.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>下列基因型的个体中,只能产生一种配子的是(&nbsp;)<br>A.ddTt&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.DDtt&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.DdTt&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.DDTt<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2012/11091752e29e436490e0d0cac56962a3/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2012/2610da71a5784cd2bf1677fd64f22451/B2AB5E3408AB71C2CA0080BCC513102C.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>大豆中含有多种营养成分,为了检测大豆种子中是否含有蛋白质,应选取的试剂是(&nbsp;&nbsp;&nbsp;)<br>A.苏丹Ⅲ染液&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.龙胆紫溶液&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.双缩脲试剂&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.斐林试剂<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/7ccece549f7b40b98813c9132c433424/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/b9a2ff843bf845ba92e5ad9cfe8540a0/56092F7968962E4C5C66776FF77349C7.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>实验材料的选择在科学研究中起着关键作用。下列各项实验中,选择的实验材料错误的是(&nbsp;)<br><tbody><br>序号<br>实名称<br>实验材料<br>①<br>检测生物组织中的还原糖<br>梨<br>②<br>绿叶中色素的提取和分离<br>菠菜叶<br>③<br>探究细胞呼吸的方式<br>酵母菌<br>④<br>观察植物细胞的有丝分裂<br>紫色洋葱鳞片叶<br></tbody><br>A.①&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.②&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.③&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/d476ecee960c46a7b22d381762b5175e/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/433d4ace7fc24d339dce1eba3f7f1033/9774DECAEFE4FF47A111CBA1F526299F.png"><br><br>※题型:填空题※知识点:填空题※试题难度:中等<br>图<br>是某植物叶肉细胞的结构示意图<br>图<br>表示该植物在不同光强度下光合作用速率<br>(<br>用<br>CO<br><sub></sub><br>吸收速率表示<br>)<br>的变化。<br>请据图<br>回答:<br><img<br>1.图1细胞内具有双层膜结构的细胞器有(填序号)。2.将图1细胞浸润在(填“大于”“小于”或“等于”)细胞液浓度的溶液中,该细胞将会出现质壁分离现象。3.图2中,影响曲线AB段光合作用速率的环境因素主要是,而可能限制曲线BC段光合作用速率的两种环境因素主要是。4.如果植物白天始终处于图2中A点状态,则在较长时间内该植物(填“能”或“不能”)正常生长。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/21fac629dae343a6a24e8b31e4b56013/049226FD4FD442ABEE72161060D2FA7C.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/3e78e8ddadb44769b64fcac6f3d67de1/4E2290B1824AB2436303A3E998C40F2E.png"><br><br>※题型:填空题※知识点:填空题※试题难度:较易<br>下图表示某高等雄性动物细胞在减数分裂过程中<br>个不同时期的细胞核内染色体和<br>DNA<br>分子的数量变化。<br>请据图<br>回答:<br><img<br>1.图中a表示,b表示。2.图中时期Ⅱ细胞内的染色体和DNA分子的数量之比为。3.从图中可以推知,该高等动物的体细胞中含有条染色体。4.在图中的4个时期中,细胞中含有同源染色体的时期有(填序号)。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/5d6a934db3474aabbeb15af101371a88/0621996CB68F3F09169B5D29DC569DB5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/34528b2223754497bf302236d610b9f1/ECA963FD2426C073027F1D8875712004.png"><br><br>※题型:读图填空题※知识点:读图填空题※试题难度:较易<br>为了探究<br>pH<br>对过氧化氢酶活性的影响<br>请根据提供的材料用具<br>完成下面的实验<br>并回答有关问题:<br>材料用具:试管<br>量筒<br>滴管<br>试管架<br>pH<br>试纸;新鲜的质量分数为<br>20%<br>的鸡肝研<br>磨液,新配制的体积分数为<br>3%<br>的过氧化氢溶液<br>质量分数为<br>5%<br>的盐酸溶液<br>质量分数为<br>5%<br>的氢氧化钠溶液<br>蒸馏水等。<br><img<br>(1)<br>实验步骤:<br>①<br>如图所示<br>先在<br>号、<br>号、<br>号试管中各加入<br>2mL<br>新配制的体积分数为<br>3%<br>的过氧化氢溶液<br>再向<br>号试管内加入<br>1mL<br>蒸馏水<br>向<br>号试管内加入<br>______________<br>向<br>号试管内加入<br>________<br>并振荡试管。<br>②<br>向<br>号、<br>号、<br>号试管内各滴入<br>滴<br>__<br>______<br>③<br>仔细观察各试管内<br>__________<br>并记录。<br>(2)<br>实验结果:<br>__________<br>(3)<br>实验结论:<br>pH<br>为<br>左右时过氧化氢酶的活性较高<br>而<br>pH<br>偏高、偏低时过氧化氢酶的活性降低。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/0e3d9ab74b5d48de9146879b23c7c792/78B2945EF77A8D425DD870F6C808C158.png"><br>解析<br>略<br>
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