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← ScienceWhich outcome occurs when a protein's tertiary structure unfolds due to excessive heat disrupting hydrogen bonds?
A)Loss of enzymatic function✓
B)Increased catalytic activity
C)Enhanced substrate binding affinity
D)Formation of novel peptide bonds
💡 Explanation
When excessive heat disrupts hydrogen bonds, the protein's tertiary structure unfolds via denaturation because increased kinetic energy overcomes the weak non-covalent interactions, leading to a change in shape affecting its active site. Therefore enzymatic function is lost, rather than increased activity or affinity which require maintenance of proper folding and active site geometry.
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