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CBSE Class 12 · 2000 · Delhi · BiomoleculesVery Short Answer

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Define the term denaturation in relation to proteins.

Solution

When a native protein is heated or its pH changed, the hydrogen bonds maintaining its shape break: globules unfold, helices uncoil, and biological activity is lost — this is \textbf{denaturation}. Secondary and tertiary structures are destroyed; the primary sequence stays intact (boiled egg white).

CBSE Class 12 Board · 2000 · Delhi · Subjective

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