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← ScienceWhich mechanism slows reaction rate when increasing dilution affects the Michaelis constant?
A)Reduced effective enzyme concentration✓
B)Temperature-dependent kinetic energy decrease
C)Increased substrate binding affinity
D)Inhibition through product accumulation
💡 Explanation
Decreased enzyme concentration lowers the reaction rate because the total number of active catalytic sites decreases via the dilution effect. This causes fewer substrate-enzyme interactions through Collision theory; therefore, it slows the overall reaction rather than other mechanisms, like decreased affinity, inhibiting the chemical process.
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