JEE Main · 2022 · Shift-ImediumBIO-092

During the denaturation of proteins, which of these structures will remain intact?

Biomolecules · Class 12 · JEE Main Previous Year Question

Question

During the denaturation of proteins, which of these structures will remain intact?

Options
  1. a

    Primary

  2. b

    Secondary

  3. c

    Tertiary

  4. d

    Quaternary

Correct Answera

Primary

Detailed Solution

Step 1: Denaturation Levels — Denaturation typically disrupts higher-order folding, as the non-covalent interactions break down.

Step 2: Identifying Survival — The 22^\circ, 33^\circ, and 44^\circ structures are all dependent on these secondary forces and thus change during denaturation.

Step 3: Conclusion — The covalent backbone of amino acids (primary structure) remains intact. Correct option is (a).

Remember: Irreversible denaturation, like cooking an egg, changes its physical state permanently.

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