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← ScienceWhich outcome occurs when peptide bonds within an enzyme's active site hydrolyze during catalysis?
A)Loss of substrate binding affinity✓
B)Increased reaction rate constant
C)Enhanced cofactor association
D)Stabilization of the transition state
💡 Explanation
When peptide bonds hydrolyze, the enzyme’s primary structure is disrupted, causing the active site to lose its specific three-dimensional shape required for substrate binding because the amino acids separate. Therefore loss of substrate binding affinity results, rather than increased reaction rate, enhanced cofactor association or transition stabilization, which require intact active sites.
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