DUMET Medical DUMET Medical Solved Paper-2010

  • question_answer
    Formation of both peptide and glycosidic bonds involves

    A)  hydration        

    B)  dehydration

    C)  esterification     

    D)  acidlificaton

    Correct Answer: B

    Solution :

    Peptide bond is an amide linkage which is formed between ?COOH group of one amino acid and ?NH2 group of another amino acid. A water molecule is always eliminated in forming of a peptide bond. A sugar molecule has several reactive hydroxyl groups. The hydroxyl group of 1st C atom forms a linkage with a hydroxyl groups of another sugar molecule, during this a water molecule is eliminated. In this process of dehydration synthesis, the bond formed is called glycosidic bond.


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