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← ScienceWhich consequence results when enzymes reach saturation due to limiting Michaelis constant?
A)Decreased substrate-level phosphorylation rate
B)Enzyme kinetics approach zero-order✓
C)Increased transition state stabilization
D)Reduced effectiveness competitive inhibitors
💡 Explanation
The enzyme rate is limited by its concentration once saturated, because velocity becomes independent of substrate following Michaelis-Menten kinetics. Therefore, reaction rate plateaus and approaches zero-order kinetics rather than continuing to increase at a high rate.
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