[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$faPjNOAN2F8fVaix0U_-d3SqS_vsheymxJQU791kdYLY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":13,"related":14,"source":24,"type":25},[],"2023-05-10 09:34:27",1534048,[8,9,10,11],"静电作用力","氢键","疏水键","范德华作用力",{},"维持蛋白质二级结构稳定的主要因素是( )",[15,26,35,38,47,56,65,73,82,87],{"answer":16,"createTime":5,"id":17,"options":18,"question":23,"source":24,"type":25},[],1534020,[19,20,21,22],"疏水作用是非极性氨基酸残基的侧链基团避开水,相互集聚在一起的现象","在蛋白质分子中只有C=O与H―N之间形成氢键","带负电的羧基与氨基、胍基、咪唑基等基团之间可形成盐键","在羧基与羟基之间也可以形成酯键","列关于维持蛋白质分子空间结构的化学键的叙述,哪个是错误的?( )","v2",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],1534022,[30,31,32,33],"一级结构改变","空间构象破坏","辅基脱落","蛋白质水解","蛋白质变性是指蛋白质( )",{"answer":36,"createTime":5,"id":6,"options":37,"question":13,"source":24,"type":25},[],[8,9,10,11],{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":24,"type":25},[],1534083,[42,43,44,45],"不断绕动状态","可以相对自由旋转","同一平面","随不同外界环境而变化的状态随不同外界环境而变化的状态随不同外界环境而变化的状态随不同外界环境而变化的状态","形成稳定的肽链空间结构,非常重要的一点是肽键中的四个原子以及和它相邻的两个α-碳原子处于( )",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":24,"type":25},[],1534085,[51,52,53,54],"顺式结构","顺式和反式共存","反式结构","不一定","肽链中的肽键是( )",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":24,"type":25},[],1534221,[60,61,62,63],"20种以上","20种","18种","17种","用6M HCl水解某种蛋白质时,水解液中最多能检出氨基酸种类数( )",{"answer":66,"createTime":5,"id":67,"options":68,"question":71,"source":24,"type":72},[],1534251,[69,70],"对","错","20种常见氨基酸只有Thr和Ile分子具有两个旋光中心,因此有两对旋光对映体.( )",3,{"answer":74,"createTime":5,"id":75,"options":76,"question":81,"source":24,"type":25},[],1534252,[77,78,79,80],"丝氨酸","脯氨酸","亮氨酸","组氨酸","下列哪种氨基酸属于亚氨基酸?( )",{"answer":83,"createTime":5,"id":84,"options":85,"question":86,"source":24,"type":72},[],1534253,[69,70],"凡具有相同氨基酸组成的蛋白质一定具有相同的构象.( )",{"answer":88,"createTime":5,"id":89,"options":90,"question":91,"source":24,"type":72},[],1534257,[69,70],"组成蛋白质的各种氨基酸区别主要在于连接α-C原子的R基团不相同.( )"]