The Michaelis-Menten equation models the hyperbolic relationship between [S] and the initial reaction rate Vo for an enzyme-catalyzed, single-substrate reaction E + SES → E + P. The model can be more readily understood when comparing three conditions: [S] << Km, [S] = Km, and [S] >> Km. Match each statement with the condition that it describes. Note that "rate" refers to initial velocity Vo where steady state conditions are assumed. [Etotal] refers to the total enzyme concentration and [Efree] refers to the concentration of free enzyme. [S] << Km [ES] is much lower than [Efree]. Almost all active sites will be filled. [S] = Km [Efree] is about equal to [Etotal]. The rate is half of the maximum rate. [S] >> Km This condition rarely occurs for most in vivo enzymes. Answer Bank Not true for any of these conditions Increasing [Etotal] will lower Km.

The Michaelis-Menten equation models the hyperbolic relationship between [S] and the initial reaction rate Vo for an enzyme-catalyzed, single-substrate reaction E + SES → E + P. The model can be more readily understood when comparing three conditions: [S] << Km, [S] = Km, and [S] >> Km. Match each statement with the condition that it describes. Note that "rate" refers to initial velocity Vo where steady state conditions are assumed. [Etotal] refers to the total enzyme concentration and [Efree] refers to the concentration of free enzyme. [S] << Km [ES] is much lower than [Efree]. Almost all active sites will be filled. [S] = Km [Efree] is about equal to [Etotal]. The rate is half of the maximum rate. [S] >> Km This condition rarely occurs for most in vivo enzymes. Answer Bank Not true for any of these conditions Increasing [Etotal] will lower Km.

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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