12th Class Chemistry Biomolecules / जैव-अणु Question Bank MCQs - Biomolecules

  • question_answer
    Which of the following represents a peptide chain?

    A) \[-NH-\underset{\begin{smallmatrix} ||\\ O \end{smallmatrix}}{\mathop{C}}\,-NH-\underset{|}{\overset{|}{\mathop{C}}}\,-NH-\underset{\begin{smallmatrix} ||\\ O \end{smallmatrix}}{\mathop{C}}\,-NH-\]

    B) \[-NH-\underset{\begin{smallmatrix} ||\\ O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{2}}-C{{H}_{2}}C{{H}_{2}}-NH-C{{H}_{2}}C{{H}_{2}}-\underset{\begin{smallmatrix} ||\\ O \end{smallmatrix}}{\mathop{C}}\,-\]

    C) \[-NH-C{{H}_{2}}-\underset{\begin{smallmatrix} ||\\ O \end{smallmatrix}}{\mathop{C}}\,-NH-C{{H}_{2}}-\underset{\begin{smallmatrix} ||\\ O \end{smallmatrix}}{\mathop{C}}\,-NH-C{{H}_{2}}-\]

    D) \[-NH-C{{H}_{2}}C{{H}_{2}}-\underset{\begin{smallmatrix} ||\\ O \end{smallmatrix}}{\mathop{C}}\,-NH-NH-C{{H}_{2}}-\underset{\begin{smallmatrix} ||\\ O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{2}}-\]

    Correct Answer: C

    Solution :

    Peptide chain has a regular repetition of amide groups.


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