Problem 1. At the given temperature, experimental data for enzyme-catalyzed reaction rates were obtained as follows. Answer the following questions. The initially added enzyme concentration, [E.], was 2 mol/L. The reaction rates in the absence and the presence of an inhibitor were measured. The concentration of the inhibitor was 0.5 mol/L. [S] (mol/L) v (no inhibitor) (mol/L-min) v (inhibitor presence) (mol/L.min) 0.1 3.7 0.05 3.0 0.03 2.5 0.015 1.8 0.005 0.7 1.3 1.2 1.1 0.9 0.5 a. Calculate the values of Km and Vm in the absence of the inhibitor. b. Calculate the value of K₁ in the presence of the inhibitor. c. Draw the catalytic mechanism of the reaction in the presence of the inhibitor. d. Identify the type of inhibitor.

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Problem 1.
At the given temperature, experimental data for enzyme-catalyzed reaction rates were obtained as follows. Answer
the following questions. The initially added enzyme concentration, [E.], was 2 mol/L. The reaction rates in the
absence and the presence of an inhibitor were measured. The concentration of the inhibitor was 0.5 mol/L.
[S]
(mol/L)
v (no inhibitor)
(mol/L-min)
v (inhibitor presence)
(mol/L.min)
0.1
3.7
0.05
3.0
0.03
2.5
0.015
1.8
0.005
0.7
1.3
1.2
1.1
0.9
0.5
a. Calculate the values of Km and Vm in the absence of the inhibitor.
b. Calculate the value of K₁ in the presence of the inhibitor.
c. Draw the catalytic mechanism of the reaction in the presence of the inhibitor.
d. Identify the type of inhibitor.
Transcribed Image Text:Problem 1. At the given temperature, experimental data for enzyme-catalyzed reaction rates were obtained as follows. Answer the following questions. The initially added enzyme concentration, [E.], was 2 mol/L. The reaction rates in the absence and the presence of an inhibitor were measured. The concentration of the inhibitor was 0.5 mol/L. [S] (mol/L) v (no inhibitor) (mol/L-min) v (inhibitor presence) (mol/L.min) 0.1 3.7 0.05 3.0 0.03 2.5 0.015 1.8 0.005 0.7 1.3 1.2 1.1 0.9 0.5 a. Calculate the values of Km and Vm in the absence of the inhibitor. b. Calculate the value of K₁ in the presence of the inhibitor. c. Draw the catalytic mechanism of the reaction in the presence of the inhibitor. d. Identify the type of inhibitor.
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