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← ScienceWhich outcome occurs when inhibitors block catalytic active sites?
A)Rate of reaction significantly decreases✓
B)Equilibrium shifts towards products
C)Catalyst structure becomes more stable
D)Activation energy threshold substantially lowers
💡 Explanation
Blocking active sites prevents substrate binding and hinders product formation; therefore reaction rate decreases because fewer substrate molecules react. The inhibition disrupts the catalytic cycle rather than enhancing the forwards rate or shifting equilibrium.
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