The Michaelis-Menten equation is often used to describe the kinetic characteristics of an enzyme-catalyzed reaction. Vmax [S] U = Km + [S] where v is the velocity, or rate, Vmax is the maximum velocity, Km is the Michaelis-Menten constant, and [S] is the substrate concentration. A graph of the Michaelis-Menten equation is a plot of a reaction's initial velocity (vo) at different substrate concentrations ([S]). First, move the line labeled Vmax to a position that represents the maximum velocity of the enzyme. 300 V Next, move the line labeled 1/2 Vmax to its correct position. max 275 Then, move the line labeled Km to its correct position. 250 225 200 175 Michaelis–Menten curve 150 K a 125 m 100 1/2 V 75 max 50 25 10 20 30 40 50 60 70 80 90 100 [S] (µM) Incorrect Estimate the values for Vmax and Km. Vmax 175 µM/min Km 14 µM v (µM/min)

The Michaelis-Menten equation is often used to describe the kinetic characteristics of an enzyme-catalyzed reaction. Vmax [S] U = Km + [S] where v is the velocity, or rate, Vmax is the maximum velocity, Km is the Michaelis-Menten constant, and [S] is the substrate concentration. A graph of the Michaelis-Menten equation is a plot of a reaction's initial velocity (vo) at different substrate concentrations ([S]). First, move the line labeled Vmax to a position that represents the maximum velocity of the enzyme. 300 V Next, move the line labeled 1/2 Vmax to its correct position. max 275 Then, move the line labeled Km to its correct position. 250 225 200 175 Michaelis–Menten curve 150 K a 125 m 100 1/2 V 75 max 50 25 10 20 30 40 50 60 70 80 90 100 [S] (µM) Incorrect Estimate the values for Vmax and Km. Vmax 175 µM/min Km 14 µM v (µM/min)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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