MDCAT Biology MCQ #740

A protein folds into a complex three-dimensional globular shape. Which combination of interactions is primarily responsible for maintaining this specific tertiary conformation?

MDCAT Biology MCQ #740

  1. Question 1

    Q1. A protein folds into a complex three-dimensional globular shape. Which combination of interactions is primarily responsible for maintaining this specific tertiary conformation?

    • A) Only peptide and glycosidic bonds
    • B) Only hydrogen bonds between backbones
    • C) Only phosphodiester linkages
    • D) Ionic, hydrogen, and disulfide bonds

    Answer: Ionic, hydrogen, and disulfide bonds

    Explanation: Tertiary structure is maintained by various bonds, including disulfide, ionic, and hydrogen bonds. Peptide bonds only maintain the primary sequence.