What will happen when each of the following is added to a solution that contains 1.0 uM Y and 0.6 р.М АВ?
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- Enzyme X has a molecular weight of 48,000. It converts substrate Z into product Y. Z absorbs at 340 nm, and Y absorbs at 480 nm. A.) At what wavelength would you measure the change in absorbance to assay for enzyme X? Would the absorbance increase or decrease over time? B.)If Vmax = 60 μmol/min and you used 400 μL of a 0.1 mg/mL solution of enzyme, what is the turnover number?200 ml of a 2% protein solution containing an enzyme that you want to purify. Half of the sample is subjected to method A, consisting of fractionated precipitations and 5 ml of final solution are obtained, with a concentration protein equal to 5 mg / ml and enzymatic activity equal to 2000 U / ml. The other half is subjected to method B, consisting of ion exchange chromatography, and a final solution of 10 ml, with protein richness equal to 10 mg / ml and with an activity enzymatic also equal to 2000 U / ml. You want to know: a) Which of the two methods has provided the purest enzyme. b) By which of the methods the greatest amount of enzyme has been obtained.An enzyme catalysed reaction has a Km of 8 mM and a Vmax of 13 nM.s-1. Use the Michaelis-Menten equation to calculate the reaction velocity when the substrate concentration is 18 mM.
- An enzymatic reaction follows M-M kinetics with Vmax= 2.5 mol m-3s-1and Km = 5 mM.Calculate the time required for 50% conversion of the substrate in a batch reactor if theinitial substrate concentration is0.2 M.Show your calculation steps.For the following reaction X + YA + B at 300 K, it is found equilibrium constant equal to 10. Therefore, AG & AGⓇ of the reaction at 300 K respectively are - Answer bA catalyst like lactase that assists in the metabolism od milk is best described as Group of answer choices homogeneous heterogeneous enzymatic non-truseable 7, What graph will demonstrate that experimental concentration data fit a second-order reaction? Group of answer choices ln[reactant] vs. time ln(k) vs. 1/T 1/[reactant] vs. time [reactant] vs. time ln(k) vs. Ea
- The purification of cytochrome C begins with 1) yeast homogenization using a bead beater in the presence of BME (a reducing agent) and a protease inhibitor from approximately 900 grams of Baker’s yeast. Then, 2) insoluble cell contents were removed by centrifugation at 4,000 x g for approximately ten minutes. The ruptured cells (lysate) after centrifugation had a total volume of 0 mL and a 1.0 mL aliquot was set aside for further analysis. The following data was obtained from the 1.0 mL aliquot to quantify the protein amount and purity: The absorbance at 410 nm of the aliquot was 0.460 (1 cm pathlength). The absorbance at 595 nm from a 1.0 mL Bradford Assay solution that was diluted by 250-fold from the aliquot was 0.681 (1 cm pathlength). Using the information given, Calculate the total protein amount in mg from the absorbance at 595 nm. Calculate the cytochrome C amount in mg from the absorbance at 410 nm using Beer’s Law.As a reference model, a 7 L baffled stirred-tank reactor with a 3:1 (H:D) aspect was employed to scale down to a 7 mL tiny bioreactor.Dt = 0.16 m; Di = 0.07 m; N = 100 rpm are the dimensions of the huge tank.1)Using geometric similarities, determine the dimensions of the micro bioreactor (Dt, Di, and H).Aerobic degradation of an organic compound by mixed cultureof organism in wastewater can be represented by following reaction. C3H6O3 + a O2 + b NH3 → c C5H7NO2 + d H2o + e CO2 A. Determine a, b, c, d and e, if YX/S = 0.4 d X/g S. B. Determine the yield coefficients YX/O2 and YX/NH3. C. Determine the degree of reductions for the substrate, bacteria and RQ for the organisms
- We have 10 mL of cells to treat with Hydrogen Peroxide (H2O2), such that the final concentration of H2O2 is 20 µM. How much of a 30 mM stock solution of H2O2 would we add to our cells? If you could please help me understand the steps of this problem!The equil ibrium constant for the attachment of a substrate to the active site of an enzyme was measured as 200.In a separate experiment, the rate constant for the secondorder attachment was found to be 1.5 x 108 dm3 mol-1 s- 1.What is the rate constant for the loss of the unreacted substrate from the active site?Show the calculations required to make up 250mlof a stock solution of this chemical that will then be at the working concentration when 1 volume of this solution is added to 10 volumes of cell culture medium.
