- A Primary mainly
- B Secondary mainly
- C Tertiary and quaternary
- D Primary and secondary
Correct answer: C. Tertiary and quaternary
Explanation: Tertiary structure involves interactions between R groups (hydrophobic, ionic, H bonds, disulfide bonds) in a single polypeptide. Quaternary involves interactions between multiple polypeptide subunits.
Concept context
Carbohydrates, proteins, lipids, nucleic acids, and enzyme kinetics. Essential foundation for understanding metabolism.