2019版高考生物二轮复习题型增分选择题天天练八(无答案).doc

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1、1选择题天天练(八)1.(2018福建宁德质检)下列关于人体肝细胞的叙述错误的是( )A.肝细胞内广阔的膜面积为多种酶提供了大量的附着位点B.肝细胞膜上既有胰岛素受体又有胰高血糖素受体C.肝细胞癌变可通过检测血清中甲胎蛋白含量初步鉴定D.水分子可以逆相对含量梯度通过水通道蛋白进入肝细胞2.(2018河北衡水中学模拟)下列关于生物学实验的描述,正确的是( )A.在常温下,双缩脲试剂加入到酶溶液中就能观察到紫色反应B.为加速健那绿染液对线粒体染色,可用适宜浓度的盐酸处理细胞C.洋葱根尖制成装片后进行低温处理,可观察到染色体加倍的细胞D.“低温诱导染色体加倍”的实验中,作为对照的常温组也要用卡诺氏液

2、处理3.(2018安徽芜湖模拟)在过氧化氢酶催化下,H 2O2分解释放的 O2与愈创木酚反应生成茶褐色产物;氧气产生越多,溶液颜色越深。为探究 pH 对过氧化氢酶活性的影响,某研究小组运用比色法,测定了 5 min 内茶褐色产物相对值的变化,结果如图所示。下列叙述正确的是( )A.实验结果说明过氧化氢酶的最适 pH 是 6B.依据 01 min 的曲线斜率,能比较不同 pH 条件下的酶活性C.pH 为 58 的缓冲液处理组,反应完全结束时的产物相对值不同D.在 pH 为 3 的缓冲液中过氧化氢酶因肽键结构被破坏而失活4.(2018黑龙江哈尔滨二模)下列关于肺炎双球菌转化实验和噬菌体侵染细菌实验

3、的叙述中,错误的是( )A.培养基中的 32P 经宿主摄取后可出现在 T2噬菌体的核酸中B.格里菲思和艾弗里所做的转化实验都能证明 DNA 是遗传物质C.若用 14C 标记的噬菌体侵染细菌,离心后上清液和沉淀物中都有较强放射性D.将 S 型菌的 DNA 与 R 型活菌混合培养,一段时间后培养基中会有两种菌落5.独脚金内酯(SL)是一种新型植物激素,能促进共生真菌菌丝分枝和养分吸收,抑制植物自身侧芽萌发等多种生理功能。下列叙述不正确的是( )A.共生的两种生物均存在与 SL 特异性结合的受体B.SL 能与其他激素相互作用共同调节植物的侧芽萌发C.生产上可通过喷洒 SL 溶液解除顶端优势D.光照、温度等环境因子会影响 SL 的合成及生理作用6.(2018甘肃二诊)下列有关生态系统功能及稳定性的描述,正确的是( )A.“墙角数枝梅,凌寒独自开”体现了生态系统中行为信息的传递B.农业生态系统中的物质可自我循环,能量需系统外提供C.动物尿液中所含能量不属于该动物的同化量D.建立濒危动物精子库,有利于保护濒危动物的基因多样性

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