The effect of an inhibitor on an enzyme was tested and the
experiment gave the results...
The effect of an inhibitor on an enzyme was tested and the
experiment gave the results below. Plot on Excel the data using a
double-reciprocal plot (Lineweaver-Burke), determine Km
and Vmax of the no inhibitor and each type of inhibitor
and the type of inhibition that is occurring.
Experiment IV: Effect of pH on the Rate of Enzyme Reaction
6. In this experiment, was the enzyme denatured or just slowed
down at any of the pH values tested? What is the evidence?
Materials for Experiment IV
Five test tubes
Test tube rack
Disposable pipettes
Potato extract
Deionized water
Water bath, 37 degrees Celsius (°C)
0.1 molar (M) sodium hydroxide (NaOH)
0.1 M hydrochloric acid (HCl)
pH paper
Procedure for Experiment IV
Five test tubes were taken and labeled...
The enzyme is studied in the presence of a different inhibitor
(inhibitor B). In this case, two different concentrations of
inhibitor are used. Data are as follows:
a) Determine the apparent Vmax at each inhibitor
concentration.
b) Determine the apparent KM at each inhibitor
concentration.
c) Estimate KI from these data. [Hint: Calculate the
KI at 3 mM and at 5 mM; and then take the average of the
two KI values.]
v[(mmol/L)min−1]
[S](mmol/L)
No inhibitor
3 mM inhibitor B...
Three groups are tested in an experiment and the results for the
measurements are: Group 1: 5, 7, 5, 3, 5, 3, 3, 9 Group 2: 8, 1, 4,
6, 6, 4, 1, 2 Group 3: 7, 3, 4, 5, 2, 2, 3, 3 Test for the equality
of the means at 5% significance.
Explain the extrinsic regulation of GFR. Explain how an
angiotensin converting enzyme inhibitor (ACE inhibitor) such as
captopril would be effective as an antihypertensive.nnn
3. The kinetics of an enzyme are studied in the absence and
presence of an inhibitor (A). The intial rate is given as a
function of substrat concentration in the table.
V0
V0
[S] (mmol/L)
no Inhibitor
Inhibitor A
1.25
1.72
0.98
1.67
2.04
1.17
2.5
2.63
1.47
5.00
3.33
1.96
10.00
4.17
2.38
(a) What kind oof competitor is inhibition is involved
(competitive, noncompetitive, uncompetitive)? [Please Provide
Graph]
(b) Determine Vmax and Km in the absence and presence of...
Enzymes Kinetics:The following kinetic data were obtained for an enzyme in the absence of inhibitor (1), and in the presence of two
different inhibitors (2) and (3) at 5 mM concentration. Assume [Etotal] is the same in each experiment.
[S](mM)
1
ν(μmol/mL. sec)
2
ν(μmol/mL. sec)
3
ν(μmol/mL. sec)
1
12
4.3
5.5
2
20
8
9
4
29
14
13
5
35
21
16
12
40
26
18
a. From a double-reciprocal plot of the data, Determine Vmax...