The protein catalase is an enzyme that catalyzes the decomposition of hydrogen peroxide: 2 H2O2 (aq) → 2 H2O (l) + O2 (g) and has a Michaelis-Menten constant of 25 × 10-3 mol·dm-3 and a turnover number of 4.0×107s-1 . The total enzyme concentration is 0.016×10-6 mol·dm-3 and the initial substrate concentration is 4.32×10-6 mol·dm-3 Calculate the maximum reaction rate (????) for this enzyme, and the initial rate of this reaction. Note that catalase has a single active site.
The protein catalase is an enzyme that catalyzes the decomposition of hydrogen peroxide: 2 H2O2 (aq) → 2 H2O (l) + O2 (g) and has a Michaelis-Menten constant of 25 × 10-3 mol·dm-3 and a turnover number of 4.0×107s-1 . The total enzyme concentration is 0.016×10-6 mol·dm-3 and the initial substrate concentration is 4.32×10-6 mol·dm-3 Calculate the maximum reaction rate (????) for this enzyme, and the initial rate of this reaction. Note that catalase has a single active site.
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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The protein catalase is an enzyme that catalyzes the decomposition of hydrogen peroxide:
2 H2O2 (aq) → 2 H2O (l) + O2 (g)
and has a Michaelis-Menten constant of 25 × 10-3 mol·dm-3 and a turnover number of 4.0×107s-1
.
The total enzyme concentration is 0.016×10-6 mol·dm-3 and the initial substrate concentration is
4.32×10-6 mol·dm-3
Calculate the maximum reaction rate (????) for this enzyme, and the initial rate
of this reaction. Note that catalase has a single active site.
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