1² L-^ 0.1 + ||| -4-2 |||| 24 [S]-1, (mM-1) 1, The value of Km for the enzyme depicted by curve A is 2, The value of Vmax for the enzyme depicted by curve A is 3, Curve B depicts the effect of an inhibitor on the system described by curve A. This inhibitor is a inhibitor. 4, Curve C depicts the effect of a different inhibitor of the system described by curve A. This second inhibitor is a inhibitor.
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![Refer to the following graph when answering questions.
These words may be used to fill: competitive, uncompetitive, noncompetitive,
irreversible.
-1
mg
, μmol min-1
v-1
0.2
0.1
THA
-4-2
CBA
+
2 4
[S]-1, (mM-1)
Word
1, The value of Km for the enzyme depicted by curve A is
2, The value of Vmax for the enzyme depicted by curve A is
3, Curve B depicts the effect of an inhibitor on the system described by curve A.
This inhibitor is a
inhibitor.
4, Curve C depicts the effect of a different inhibitor of the system described by curve
A. This second inhibitor is a
inhibitor.
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- A purified protein sample was used in a reaction, resulting in an activity of 696.7 nmol min-1. The reaction volume was 145.0 µL and the final volume before loading the plate was 1,050 µL. The total reaction time was 4.25 min. The amount of protein used in the reaction was 4.270 µg. Calculate the specific activity of the sample (in nmol min-1 µg-1).Given the line-weaver Burke plot below for Enzyme Y, identify the Vmax for Enzyme Y. -10 30 1/v 1/[S] 5 10 Enter the numerical value for Vmax only, no letters or symbols. Round answer to 2 significant figures.Paclitaxel is used to treat ovarian cancer by infusion at a concentration of 0.6 mg/mL over 24 hours. A dose of 135 mg/m² has been prescribed for Sero. Sero is 1.06 m tall and weighs 92 kg. Paclitaxel comes in vials of 150 mg/25 mL. Calculate the volume of 5%w/v glucose solution that would be required to dilute the concentrated solution to prepare an paclitaxel solution of the required strength.
- Penicillin is hydrolyzed and thereby rendered inactive by penicillinase, an enzyme present in some resistant bacteria. The mass of this enzyme in Staphylococcus aureus is 29.6 kd. The amount of penicillin hydrolyzed in 1 minute in 10 ml solution containing 10–9 g of purified penicillinase was measured as a function of the concentration of penicillin. Assume that the concentration of penicillin does not change during the assay. [Penicillin] µM Amount hydrolyzed (nanomoles) 1 0.11 3 0.25 5 0.34 10 0.45 30 0.58 50 0.61 a) Plot V0 versus [S] and 1/V0 1/[S]. Does penicillinase appear to obey Michaelis-Menten kinetics? b) What is the value of KM? c) What is the value of Vmax? d) What is the turnover number of penicillinase under these conditions?Paclitaxel is used to treat ovarian cancer by infusion at a concentration of 0.6 mg/mL over 24 hours. A dose of 135 mg/m² has been prescribed for Sero. Sero is 1.06 m tall and weighs 92 kg. Paclitaxel comes in vials of 150 mg/25 mL. Calculate the volume of 5%w/v glucose solution that would be required to dilute the concentrated solution to prepare an paclitaxel solution of the required strength. Answer: You did not give the correct unit. The correct answer is: 333 mL XCimetidine is used in the treatment and management of gastric ulcers and gastroesophageal reflux disease. In the case of an active ulcer, cimetidine can be administered continuous by IV infusion at a dose rate of 37.5 mg/hr. If the concentration of the cimetidine solution is 6 mg/ml, then how many milliliters must be available for a 4-hr infusion?Misoprostol is used to prevent NSAID-induced gastric ulcers. A daily dose consists of two tablets administered four times each day. What is the size of one day’s dose if each tablet contains 100 mcg of misoprostol?
- You plot a reaction progress curve and find the equation of the line to be y = -0.0961x + 0.7142. Calculate the U, U/μL and U/mL of lysozyme activity in this fraction. The lysozyme activity is done identical to what is indicated in the lab manual.Please note the following Lineweaver-Burk plot for the enzyme Virbraniumase reacting with a substrate: -0.4 . 1/V 5 4 3 2 -0.2 0 0.2 y = 5.2781x + 1.3338 R² = 0.9967 0.4 0.6 0.8 1/[S] 1 Based on the information provided, what is the Vmax for this reaction?An enzyme-catalyzed reaction has a KM of 20.0 mmol L-1 and Vmax of 17.0 pmol s-1. When a mixed inhibitor is added, the apparent KM is 50.0 mmol L-1 and the apparent Vmax is 5.20 pmol s-1. Calculate α.
- You will perform the protocol below for the calf intestinal alkaline phosphatase (CIP) provided. For each reaction, your final enzyme concentration should be 10 nM CIP. Note: Enzymes purchased are typically labelled with their “units of activity” (U), as this relates to how much enzyme is needed to catalyze a reaction. The 100 nM CIP provided has approximately 3 U/mL and was diluted 1 in 1,000 from a 500 U/mL purchased enzyme. 1) Create a table (similar to the one below) to help you determine and keep track of what to add to each of the cuvettes in which your reactions will be measured. The five different concentrations of PNPP should be: 25, 50, 100, 200, 300 μM. Each reaction will be in a final volume of 1 mL and contain 10 nM alkaline phosphatase. Concentrations of stock solutions: 1.0 mM PNPP, 100 nM calf intestinal phosphataseA hollow fiber enzyme reactor (HFER) consists of 5000 fibers. Each fiber has an internal diameter of 0.04 cm, and on the inside surface of the fibers, an enzyme has been immobilized that removes a toxin from plasma that is flowing through the inside of the fibers. The enzyme reaction is very fast, so a reasonable assumption is that the concentration of the toxin at the surface of the hollow fiber is equal to zero. The /HFER operates at 37°C, and the plasma enters at a total flow rate of 200 mL/min. The concentration of the toxin in the plasma that enters the HFER is 1 mg/L, and its MW is 636 g/mol. If the fibers in the HFER are 50 cm in length, what is the concentration of the toxin in the plasma as it leaves the HFER?If 287.9 umol of enzyme X has a Vmax = 47.8 mmol/sec, what is the value of kcat %3D sec-1? Please report answer with 1 decimal place. Please do not report units. Your Answer: Answer units MacBook Air 888 F5 F4 F3 F2 %23 %24 %24