生物化学测试题1VIP免费

目录第一章蛋白质的结构与功能··············································2第二章核酸的结构与功能················································16第三章酶······································································25第四章糖代谢································································36第五章脂类代谢·····························································49第六章生物氧化·····························································62第七章氨基酸代谢··························································71第八章核苷酸代谢··························································80第九章物质代谢的联系与调节··········································86第十章DNA生物合成----复制·······································931第十一章RNA的生物合成----转录··································103第十二章蛋白质的生物合成----翻译·····························110第十三章基因表达调控·················································119第十四章基因重组与基因工程········································128第十五章细胞信息转导·················································136第十六章肝的生物化学·················································151第十七章维生素与微量元素···········································162第十八章常用分子生物学技术的原理及其应用·················166第十九章水和电解质代谢··············································171第二十章酸碱平衡······················································1752第一章蛋白质的结构与功能一.单项选择题1.下列不含有手性碳原子的氨基酸是A.GlyB.ArgC.MetD.PheE.Val2.那一类氨基酸在脱去氨基后与三羧酸循环关系最密切A.碱性氨基酸B.含硫氨基酸C.分支氨基酸D.酸性氨基酸E.芳香族氨基酸3.一个酸性氨基酸，其pHa1＝2.19，pHR＝4.25，pHa2＝9.67，请问其等电点是A.7.2B.5.37C.3.22D.6.5E.4.254.下列蛋白质组分中，那一种在280nm具有最大的光吸收A.酪氨酸的酚环B.苯丙氨酸的苯环C.半胱氨酸的巯基D.二硫键E.色氨酸的吲哚环5.测定小肽氨基酸序列的最好办法是A.2,4-二硝基氟苯法B.二甲氨基萘磺酰氯法C.氨肽酶法D.苯异硫氰酸酯法E.羧肽酶法6.典型的α-螺旋含有几个氨基酸残基A.3B.2.6C.3.6D.4.0E.4.47.每分子血红蛋白所含铁离子数为A.5B.4C.3D.2E.18.血红蛋白的氧合曲线呈A.U形线B.双曲线C.S形曲线D.直线E.Z形线9.蛋白质一级结构与功能关系的特点是A.氨基酸组成不同的蛋白质，功能一定不同B.一级结构相近的蛋白质，其功能类似可能性越大C.一级结构中任何氨基酸的改变，其生物活性即消失D.不同生物来源的同种蛋白质，其一级结构相同E.以上都不对10.在中性条件下，HbS与HbA相比，Hb...