Lesson3:AMINOACIDSContentsExercisesTextNewwordsQuestionsHomeworkDate21Whichnutrientsexistinfood?Protein,Carbohydrate,Lipids,Water,Vitamins,MineralsDietaryfiber(DF)ANSWERis:Date3carbon2Whichelementsincludeinprotein?asionally:sulphurDate4Howmanykindsofaminoacidsinprotein?Howmanykindsofessentialaminoacidsinprotein?Theyare???208+-氨基的aminogroup氨基-NH2aminonitrogen氨基态氮aminoacidDate6-yl基acyl酰基acetyl乙酰基methyl***ethyl乙基propyl丙基carboxyl羧基carbonyl羰基group基团Date7EXERSICESaminoacylase氨基酰化酶peptidase肽酶carboxymethyl-羧***ethylalcohol乙醇tricarboxylicacidcycleDate8meta-变化,,(产),);、:endproductsDate10
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