MDCAT Biology MCQ #699

During the formation of a peptide bond between two amino acids, which specific atoms are removed to form a water molecule?

MDCAT Biology MCQ #699

  1. Question 1

    Q1. During the formation of a peptide bond between two amino acids, which specific atoms are removed to form a water molecule?

    • A) OH from amino, H from carboxyl
    • B) H from both groups
    • C) OH from both groups
    • D) OH from carboxyl, H from amino

    Answer: OH from carboxyl, H from amino

    Explanation: The OH is removed from the carboxyl group and H from the amino group. The reverse is tempting but incorrect according to PTB mechanisms.