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Which risk elevates as enzymatic reaction rates approach Vmax?

A)Substrate inhibition becomes more pronounced
B)Product inhibition becomes unexpectedly limited
C)Allosteric regulation significantly decreases effectiveness
D)Enzyme denaturation exhibits positive signal amplification

💡 Explanation

Substrate inhibition emerges as reaction rates approach Vmax occurs because increased collisions inhibit enzyme activity, therefore substrate inhibition elevates sharply, rather than the enzyme denaturing or unusual allosteric shifts which change active site dynamics.

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