【单选题】【消耗次数:1】
膳食蛋白质中非必需氨基酸()具有节约苯丙氨酸的作用。
A.半胱氨酸
B.酪氨酸
C.丙氨酸
D.丝氨酸
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相关题目
【单选题】 膳食蛋白质中非必需氨基酸()具有节约蛋氨酸的作用。
①  A.半胱氨酸
②  B.酪氨酸
③  C.精氨酸
④  D.丝氨酸
【单选题】 苯丙氨酸、酪氨酸和色氨酸具有紫外吸收性质,使得蛋白质在()nm处具有最大紫外吸收峰。
①  320nm
②  280nm
③  480nm
④  550nm
【判断题】 酪氨酸和苏氨酸都是条件必需氨基酸。
①  正确
②  错误
【判断题】 赖氨酸、蛋氨酸、色氨酸这三种必需氨基酸是植物性蛋白质相对缺少的必需氨基酸。
①  正确
②  错误
【判断题】 硒代半胱氨酸属于稀有蛋白质氨基酸,同4-羟脯氨酸一样,都是蛋白质合成后经修饰得到的().
①  正确
②  错误
【判断题】 色氨酸不是人体必需氨基酸。
①  正确
②  错误
【判断题】 大米蛋白质中的第二限制氨基酸为赖氨酸。
①  正确
②  错误
【判断题】 大米蛋白质中的第一限制氨基酸为苏氨酸。
①  正确
②  错误
【判断题】 玉米蛋白质中的第二限制氨基酸为色氨酸。
①  正确
②  错误
【判断题】 玉米蛋白质中的第一限制氨基酸为赖氨酸。
①  正确
②  错误
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