Graphical methods are available for accurate determination of the Vmax and Km of an enzyme-catalyzed reaction. However, thes quantities can sometimes be estimated by inspecting values of Vo at increasing [S]. Estimate the Vmax and Km of the enzyme-catalyzed reaction for which the data in the table were obtained. [S] (M) Vo (uM min-l) 2.5 x 10-6 28 4.0 x 10-6 40 1 × 10-5 70 2 x 10-5 95 4 x 10-5 112 1 × 10-4 128 2 x 10-3 139 1 × 10-2 140 Please enter your answers using values from the table. Use a whole number for Vmax.

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
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Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
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An enzyme has a V
of 1.2 uM s
The Km for its substrate is 10 µM.
max
Calculate the initial reaction velocity, Vo, for each substrate concentration, [S].
Calculate Vo when [S] is 2 µM.
Vo =
µM s
Calculate Vo when [S] is 10 µM.
Vo =
µM s-1
Calculate Vo when [S] is 30 µM.
Vo =
µM s-1
Transcribed Image Text:An enzyme has a V of 1.2 uM s The Km for its substrate is 10 µM. max Calculate the initial reaction velocity, Vo, for each substrate concentration, [S]. Calculate Vo when [S] is 2 µM. Vo = µM s Calculate Vo when [S] is 10 µM. Vo = µM s-1 Calculate Vo when [S] is 30 µM. Vo = µM s-1
Graphical methods are available for accurate determination of the Vmax and Km of an enzyme-catalyzed reaction. However, these
quantities can sometimes be estimated by inspecting values of Vo at increasing [S].
Estimate the Vm
and Km of the enzyme-catalyzed reaction for which the data in the table were obtained.
max
[S] (M)
Vo (uM min-1)
2.5 x 10-6
28
4.0 × 10-6
40
1 x 10-5
70
2 x 10-5
95
4 x 10-5
112
1 x 10-4
128
2 x 10-3
139
1 x 10-2
140
Please enter your answers using values from the table. Use a whole number for Vmax .
Transcribed Image Text:Graphical methods are available for accurate determination of the Vmax and Km of an enzyme-catalyzed reaction. However, these quantities can sometimes be estimated by inspecting values of Vo at increasing [S]. Estimate the Vm and Km of the enzyme-catalyzed reaction for which the data in the table were obtained. max [S] (M) Vo (uM min-1) 2.5 x 10-6 28 4.0 × 10-6 40 1 x 10-5 70 2 x 10-5 95 4 x 10-5 112 1 x 10-4 128 2 x 10-3 139 1 x 10-2 140 Please enter your answers using values from the table. Use a whole number for Vmax .
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