[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fHlHl8OB_Ghh-zADUi97WRIvLTuRRnuzSqBj35PGkdeE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":28,"type":29},[],"2025-12-31 14:08:53",296741353,[8,9,10,11],"不带正电荷","不带负电荷","溶解度最大","在电场中不泳动",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","氨基酸在等电点时,不具有的特点是( )",[18,30,40,50,60,70,79,82,91,96],{"answer":19,"createTime":5,"id":20,"options":21,"question":27,"source":28,"type":29},[],296741347,[22,23,24,25,26],"精氨酸","赖氨酸","甘氨酸","色氨酸","谷氨酸","下列含有两个羧基的氨基酸是:( )","v1",0,{"answer":31,"createTime":5,"id":32,"options":33,"question":39,"source":28,"type":29},[],296741348,[34,35,36,37,38],"盐键","疏水键","肽键","氢键","二硫键","维持蛋白质二级结构的主要化学键是:( )",{"answer":41,"createTime":5,"id":42,"options":43,"question":49,"source":28,"type":29},[],296741349,[44,45,46,47,48],"溶液 pH 值大于pI","溶液 pH 值小于pI","溶液 pH 值等于pI","溶液 pH 值等于 7.4","在水溶液中","蛋白质所形成的胶体颗粒,在下列哪种条件下不稳定:( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":59,"source":28,"type":29},[],296741350,[54,55,56,57,58],"氨基酸排列顺序的改变","氨基酸组成的改变","肽键的断裂","蛋白质空间构象的破坏","蛋白质的水解","蛋白质变性是由于:( )",{"answer":61,"createTime":5,"id":62,"options":63,"question":69,"source":28,"type":29},[],296741351,[64,65,66,67,68],"粘度下降","溶解度增加","不易被蛋白酶水解","生物学活性丧失","容易被盐析出现沉淀","变性蛋白质的主要特点是:( )",{"answer":71,"createTime":5,"id":72,"options":73,"question":78,"source":28,"type":29},[],296741352,[74,75,76,77],"酸性","碱性","电荷","亲水性","蛋白质的电泳行为是因其具有( )",{"answer":80,"createTime":5,"id":6,"options":81,"question":16,"source":28,"type":29},[],[8,9,10,11],{"answer":83,"createTime":5,"id":84,"options":85,"question":90,"source":28,"type":29},[],296741354,[86,87,88,89],"氢键断裂","肽键断裂","疏水相互作用破坏","范德华力破坏","蛋白质变性不包括( )",{"answer":92,"createTime":5,"id":93,"options":94,"question":95,"source":28,"type":29},[],296741355,[34,38,36,35,37],"维系蛋白质二级结构稳定的化学键是( )( )",{"answer":97,"createTime":5,"id":98,"options":99,"question":105,"source":28,"type":29},[],296741356,[100,101,102,103,104],"16g","18g","31.25g","62.5g","35.5g","某一蛋白质样品测出含氮量为10g,此样品的蛋白质大致含量约为( )( )"]