MDCAT Chemistry MCQ #4866

An artificial sweetener is a pentapeptide synthesized in a lab. How many water molecules were eliminated to form the peptide linkages in this molecule?

MDCAT Chemistry MCQ #4866

  1. Question 1

    Q1. An artificial sweetener is a pentapeptide synthesized in a lab. How many water molecules were eliminated to form the peptide linkages in this molecule?

    • A) 5 water molecules
    • B) 4 water molecules
    • C) 5 peptide bonds
    • D) 3 water molecules

    Answer: 4 water molecules

    Explanation: A pentapeptide contains five amino acids linked by four peptide bonds. Option C is tempting but describes the number of amino acids, not the bonds.