DUMET Medical DUMET Medical Solved Paper-2007

  • question_answer
    Which disaccharide has different linkage?

    A)  Maltose        

    B)  Starch

    C)  Sucrose

    D)  Lactose

    Correct Answer: C

    Solution :

    Sucrose has different linkage. It consists of 1 D-glucose and 1, D fructose units joined by \[\alpha \]  1, 2-glycosidic linkage. Maltose is made up of two glucose unit which are joined by \[\alpha \]-1, 4-glycosidic linkage. Lactose is made up of 1 glucose and 1 galactose unit joined by \[\beta \]-1, 4-glycosidic linkage. Starch is a polymer of D-glucopyranose units linked by \[\alpha \] -1, 4-glycosidic linkage.


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