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Mi·chae·lis-Men·ten kinetics

n pl but sing or pl in constr :  the behavior of an enzyme-catalyzed reaction with a single substrate esp. as exhibited by plotting the velocity of the reaction against the concentration of the substrate which yields a hyperbolic curve approaching a horizontal asymptote rather than yielding a straight line as in nonenzymatic reactions and which has an equation of the form where v is the velocity of the reaction, V is the asymptotic value of the velocity, Km is the Michaelis constant, and s is the concentration of the substrate .
 
 

 
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