MDCAT Biology MCQ #817

A medical student is comparing oxygen-binding proteins. Which protein exhibits a quaternary level of organization involving four subunits and a prosthetic group?

MDCAT Biology MCQ #817

  1. Question 1

    Q1. A medical student is comparing oxygen-binding proteins. Which protein exhibits a quaternary level of organization involving four subunits and a prosthetic group?

    • A) Myoglobin
    • B) Lysozyme
    • C) Albumin
    • D) Hemoglobin

    Answer: Hemoglobin

    Explanation: Hemoglobin is a quaternary protein consisting of four polypeptide chains. Myoglobin is a single-chain protein that only reaches the tertiary level.