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Question: Answered & Verified by Expert
Which structure(s) of proteins remains(s) intact during denaturation process?
ChemistryBiomoleculesNEETNEET 2019 (Odisha)
Options:
  • A Both secondary and tertiary structures
  • B Primary structure only
  • C Secondary structure only
  • D Tertiary structure only
Solution:
1147 Upvotes Verified Answer
The correct answer is: Primary structure only
The loss in biological activity of proteins due to unfolding of globules and uncoiling of helix is called denaturation of proteins. During the denaturation, primary structure remains intact but secondary and tertiary structures are destroyed. e.g. The coagulation of egg white on boiling, curding of milk caused by bacteria due to formation of lactic acid.

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