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← ScienceWhich consequence results when an enzyme's active site becomes saturated in a metabolic pathway?
A)Enzyme reaction experiences zero-order kinetics✓
B)Product inhibition decreases pathway flux
C)Michaelis-Menten constant approximates substrate concentration
D)Transition state stabilization becomes rate-limiting
💡 Explanation
Saturation leads to zero-order kinetics because the enzyme's rate is independent of substrate concentration, therefore the reaction rate plateaus, rather than increasing despite further substrate boosts, deviating from first-order dependence.
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