[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f8ZpW06YMoIvdoVPx2q4DChnvvJwnGNkp6AQ-URhGJm0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":20,"related":21,"source":32,"type":33},[],"2024-04-24 23:10:03",140128882,[8,9,10,11,12],"酶蛋白","底物","辅酶","辅基","催化基团",{"count":14,"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},130,"0d25529f32f8be3b55ba5f4594c849d3","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F34d71074923ab5823aecbc4df232c360.png","医学生物化学与分子生物学","work_33644123","第三章、酶与酶促反应","酶促反应中决定酶专一性的部分是",[22,34,44,54,64,74,83,93,103,112],{"answer":23,"createTime":5,"id":24,"options":25,"question":31,"source":32,"type":33},[],140128873,[26,27,28,29,30],"酶分子上含有必需基团的肽段","酶分子中能够和底物分子结合的部位","酶分子中和辅酶结合的部位","酶分子结合并催化底物转化的部位","酶分子有丝氨酸残基、二硫键存在的区域","酶的活性中心是指","v1",0,{"answer":35,"createTime":5,"id":36,"options":37,"question":43,"source":32,"type":33},[],140128874,[38,39,40,41,42],"增加产物能量水平","降低活化能","降低反应物能力水平","降低反应的自由能","改变反应平衡点","酶催化作用对能量的影响在于",{"answer":45,"createTime":5,"id":46,"options":47,"question":53,"source":32,"type":33},[],140128875,[48,49,50,51,52],"与酶的底物竞争激活剂","与酶的底物竞争酶的活性中心","与酶的底物竞争酶的辅基","与酶的底物竞争酶的必须基团","与酶的底物竞争酶的变构剂","竞争性抑制剂作用的特点是",{"answer":55,"createTime":5,"id":56,"options":57,"question":63,"source":32,"type":33},[],140128876,[58,59,60,61,62],"不可逆抑制作用","竞争性可逆抑制作用","非竞争性可逆抑制作用","反竞争性可逆抑制作用","无法确定","下列哪一种情况可用增加[S]的方法减轻抑制程度",{"answer":65,"createTime":5,"id":66,"options":67,"question":73,"source":32,"type":33},[],140128877,[68,69,70,71,72],"Vmax 减小,Km减小","Vmax 增加,Km增加","Vmax 不变,Km增加","Vmax 不变,Km减小","Vmax 减小,Km增加","酶的竞争性抑制剂可使",{"answer":75,"createTime":5,"id":76,"options":77,"question":82,"source":32,"type":33},[],140128878,[78,79,80,81],"Km 值增大,Vmax不变","Km 值不变,Vmax值增大","Km 值不变,Vmax减小","Km 值减小,Vmax值增大","非竞争性抑制剂存在时,酶促反应的动力学特点是",{"answer":84,"createTime":5,"id":85,"options":86,"question":92,"source":32,"type":33},[],140128879,[87,88,89,90,91],"活性中心学说","诱导契合学说","锁钥学说","中间产物学说","过渡态互补学说","目前较为被广泛接受的关于酶与底物结合机制的学说是",{"answer":94,"createTime":5,"id":95,"options":96,"question":102,"source":32,"type":33},[],140128880,[97,98,99,100,101],"Vmax&times;2\u002F3","Vmax&times;1\u002F3","Vmax&times;1\u002F2","Vmax&times;1\u002F4","Vmax&times;1\u002F6","对于一个符合米氏方程的酶来说:当[S]=Km,[I]=Ki 时,若I为竞争性抑制剂,则v为",{"answer":104,"createTime":5,"id":105,"options":106,"question":111,"source":32,"type":33},[],140128881,[107,108,109,110,41],"酶能大幅度降低反应所需的活化能","酶能催化热力学上不能进行的反应","酶能改变反应的平衡点","酶能提高反应物分子的活化能","酶具有高效催化能力的原因是",{"answer":113,"createTime":5,"id":6,"options":114,"question":20,"source":32,"type":33},[],[8,9,10,11,12]]