Question
During denaturation, which level of protein structure remains unchanged?
MHT CET
Chemistry
Biomolecules
2026
MHT CET 2026 (15 April Shift 2)
MHT CET Chemistry Question (2026) — Solution
Options
- A. primary
- B. secondary
- C. tertiary
- D. quaternary
Answer
A. primary
Step-by-step solution
Denaturation of a protein involves the disruption of its secondary, tertiary, and quaternary structures due to the breaking of non-covalent interactions such as hydrogen bonds, hydrophobic interactions, and disulfide bridges. The primary structure, which is the sequence of amino acids linked by strong covalent peptide bonds, is not affected by denaturation and remains intact. Answer: primary
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