[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fQW9I6RfUQrf75rK9kXSVMyXE75oGfy16ksRk83T_d7Q":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":20,"related":21,"source":25,"type":26},[],"2025-09-22 03:20:49",217602445,[8,9,10,11,12],"溶液pH值7.0是氨基酸所带正负电荷数相等状态的pH值","氨基酸羧基和氨基均质子化时的溶液pH值","氨基酸水溶液本身的pH值","氨基酸净电荷等于零时的溶液pH值","氨基酸的可解离基团均呈解离状态时的溶液pH值",{"count":14,"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},24,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","baf873625da04f71adf497941bde9114","章节测试","氨基酸的等电点是指",[22,27,37,47,57,67,77,87,97,107],{"answer":23,"createTime":5,"id":6,"options":24,"question":20,"source":25,"type":26},[],[8,9,10,11,12],"v1",0,{"answer":28,"createTime":5,"id":29,"options":30,"question":36,"source":25,"type":26},[],217602446,[31,32,33,34,35],"在原点不动","向负极移动","一会移向负极,一会移向正极","向正极移动","都呈负电性","将丙氨酸溶于pH3的缓冲液中进行电泳,它的行为是: (丙氨酸的等电点为6.00)",{"answer":38,"createTime":5,"id":39,"options":40,"question":46,"source":25,"type":26},[],217602447,[41,42,43,44,45],"谷氨酸、天冬酰胺","丝氨酸、苏氨酸","苯丙氨酸、酪氨酸","半胱氨酸、蛋氨酸","丝氨酸、缬氨酸","下列各组氨基酸中都含有羟基的是",{"answer":48,"createTime":5,"id":49,"options":50,"question":56,"source":25,"type":26},[],217602448,[51,52,53,54,55],"生物体内结构最复杂的高分子化合物","生物体内含量最多的固体物质","生物体内种类最多的组成成分","生物体内最多的两性电解质","生物体内的遗传物质","关于蛋白质的错误的描述是",{"answer":58,"createTime":5,"id":59,"options":60,"question":66,"source":25,"type":26},[],217602449,[61,62,63,64,65],"6.25%","12.5%","1.25%","2.5%","14.5%","测得某生物样品每克含氮0.02克,则该样品蛋白质含量应是",{"answer":68,"createTime":5,"id":69,"options":70,"question":76,"source":25,"type":26},[],217602450,[71,72,73,74,75],"a-螺旋","b-折叠","g-转角","三级结构","四级结构","蛋白质分子构象中通常不包括哪种结构",{"answer":78,"createTime":5,"id":79,"options":80,"question":86,"source":25,"type":26},[],217602451,[81,82,83,84,85],"辅基","辅酶","亚基","寡聚体","肽单位","在具有四级结构的蛋白质分子中,每个具有三级结构的多肽链是",{"answer":88,"createTime":5,"id":89,"options":90,"question":96,"source":25,"type":26},[],217602452,[91,92,93,94,95],"蛋白质肽链中的氢键","蛋白质肽链中的肽键","蛋白质肽链中的氨基酸组成和顺序","蛋白质肽链中的肽键平面","蛋白质肽链中的肽单位","蛋白质的高级结构取决于",{"answer":98,"createTime":5,"id":99,"options":100,"question":106,"source":25,"type":26},[],217602453,[101,102,103,104,105],"一定有多个相同的亚基","一定有多个不同的亚基","一定有种类相同,而数目不同的亚基数","一定有种类不同,而数目相同的亚基数","亚基的种类、数目都不定","蛋白质的四级结构",{"answer":108,"createTime":5,"id":109,"options":110,"question":113,"source":25,"type":26},[],217602454,[111,112,74,75,81],"α-螺旋","β-片层","每种完整的蛋白质分子必定有"]