an enzyme-catalyzed reaction is studied in the presence and absence of an inhibitor. The following data was obtained. (S)[M] V (umol/min) V (+inhibitor)(umol/min) 6 x 10-6 20.8 12 1 x 10-5 29 15 2 x 10-5 45 20 6 x 10-5 67.6 24 1.8 x 10-4 87 28 plot 1/[S] as abscissa and 1/V as ordinate for both catalyzed reaction and reaction with inhibitor. Use the same graph for both plots. calculate the Km of enzyme in the reaction without inhibitor Km1 of the enzyme in the reaction with inhibitor Vmax of the uninhibited reaction Vmax of the inhibited reaction what kind of inhibitor was added to the enzyme-catalyzed reaction? explain your answer in terms of changes in Km and Vmax.
an enzyme-catalyzed reaction is studied in the presence and absence of an inhibitor. The following data was obtained. (S)[M] V (umol/min) V (+inhibitor)(umol/min) 6 x 10-6 20.8 12 1 x 10-5 29 15 2 x 10-5 45 20 6 x 10-5 67.6 24 1.8 x 10-4 87 28 plot 1/[S] as abscissa and 1/V as ordinate for both catalyzed reaction and reaction with inhibitor. Use the same graph for both plots. calculate the Km of enzyme in the reaction without inhibitor Km1 of the enzyme in the reaction with inhibitor Vmax of the uninhibited reaction Vmax of the inhibited reaction what kind of inhibitor was added to the enzyme-catalyzed reaction? explain your answer in terms of changes in Km and Vmax.
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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2. an enzyme-catalyzed reaction is studied in the presence and absence of an inhibitor. The following data was obtained.
(S)[M] | V (umol/min) | V (+inhibitor)(umol/min) |
6 x 10-6 | 20.8 | 12 |
1 x 10-5 | 29 | 15 |
2 x 10-5 | 45 | 20 |
6 x 10-5 | 67.6 | 24 |
1.8 x 10-4 | 87 | 28 |
- plot 1/[S] as abscissa and 1/V as ordinate for both catalyzed reaction and reaction with inhibitor. Use the same graph for both plots.
calculate the
- Km of enzyme in the reaction without inhibitor
- Km1 of the enzyme in the reaction with inhibitor
- Vmax of the uninhibited reaction
- Vmax of the inhibited reaction
- what kind of inhibitor was added to the enzyme-catalyzed reaction? explain your answer in terms of changes in Km and Vmax.
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