2015年高考生物试卷(福建)(解析卷)
1.人体内含有多种多样的蛋白质,每种蛋白质()A.都含有20种氨基酸B.都是在细胞内发挥作用C.都具有一定的空间结构D.都能催化生物化学反应【答案】C【考点定位】考查蛋白质的结构和功能。【名师点睛】本题是蛋白质有关的一个综合题,需要学生系统掌握蛋白质的相关知识,如蛋白质的组成单位及其种类、形成过程及其结构特点、功能及其发挥作用的场所等,意在提醒学生在平时复习中要对某方面的知识专题会做系统而全面的归纳、总结,进而形成知识网络体系。2.有一种胰岛素依赖型糖尿病是由于患者体内某种T细胞过度激活为效应T细胞后,选择性地与胰岛B细胞密切接触,导致胰岛B细胞死亡而发病。下列叙述正确的是()A.这种胰岛素依...
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