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- 1.5. Anesthetic gases used in surgery are known to bind to the hemoglobin molecule in red blood cells. The diagram below illustrates O2 binding curves of normal human HbA in the presence of the anesthetic gas dichloromethane (DCM). O UNTREATED 100 a Dсм 23 Torr Symbols: в Dсм 50 Torr x DCM I00 Torr o, 0 Torr DCM; O, 23 Torr DCM A, 50 Torr DCM x, 100 Torr DCM. 80 60 40 (1 Torr = 1 mm Hg.) 20 The solutions were buffered to pH 7.4. 0.5 1.0 1.5 2.0 log p02 (a) (* Hill plots. Label the axes and indicate on both the plot above and the Hill plot where the value of the dissociation equilibrium constant Ka for O2 binding is defined for 0 and 100 Torr of dichloromethane For the curves at 0 and 100 Torr of dichloromethane, draw their equivalent in the form of Kd Hb(O2)n Hb + nO2 % OXYGENATIONExample The standard half electrode potential for Fe²+ vs SHE is 0.77 V. What is the value of Ee at T = 298K when: [Fe³+] = 0.2 mol l-1 [Fe2+] = 0.05 mol 1-1
- Above or below what pH would the polypeptide become fully mobile on a cation exchange column? Explain reasoning please. Per my understanding, I believe I need to find pI and then select a pH1. Start with the Michaelis-Menten equation and convert it to a double-reciprocal equation. Show how you would make a linear Lineweaver-Burk plot using this equation. 2. Based on th chart make a Lineweaver-Burk plot and later use the plot to complete the information in the table.4. Below is a Michaelis-Menten plot for a wild-type (WT) and mutant (V105A) enzyme isolated from the bacterium Staphylococcus aureus. The enzyme is involved in carbohydrate metabolism and is a potential biocatalyst for the large-scale production of rare sugars. (8) mg V₂ μmol s1 1.50- 1.25- 1.00- 0.75- 0.50- 0.25- 0.00 0 100 200 300 [s], mM 400 500 WT (a) Estimate the KM and Vmax for the wild-type and mutant enzyme from the graph. V105A (b) Calculate the keat and keat/KM for the wild-type and mutant enzyme based on your estimated values in (a) if the total enzyme concentration is 0.5 µmol/mg. (c) Is the mutant enzyme a more or less efficient catalyst than the wild-type enzyme? Briefly explain.
- 29 (RBE) value of 20 for the a radiation, calculate the equivalent dose In miner in that year Problem 7: A patient with with uveal melanoma is treated at a cyclotron facility with energetic protons directed at a tumor in their eye, with a dose of 1.0 Gy administered over five sessions, What is the equivalent dose in Sv to the tumor? A 6 Type of Radiation O Sv X-rays 7-rays / rays > 32 kev rays <32 ke V Neutrons, thermal to slow (< 20 keV) Neutrons, fast (1 – 10 MeV) Protons (1 - 10 MeV) a-rays from radioactive decay to the lungs of the 17 10 (body), 32 (eyes) 10 (body), 32 (cycs) 20Major functional groups present and expected wavenumbers of the peaks: Attach IR spectrum of the compound and list wavenumbers of signals/peaks observed in the spectrum: Discussion4. a. Calculate the KM (Michaelis constant) and the vmax (the maximum initial rate) for both substrates (sphingosine and ATP). Show your work, and be careful about units. b. threo-dihydrosphingosine, a stereoisomer of sphingosine, is an inhibitor of sphingosine kinase. What kind of inhibitor (competitive, uncompetitive, noncompetitive) is threo-dihydrosphingosine? Citing information from the Lineweaver-Burke plots, explain how you can tell.
- Which of the following drugs is a less potent microsomal triglyceride transfer protein (MTP) inhibitor, which reduces cholesterol levels? O Structure 1 (IC50 = 23 nM) O BMS-200150 (IC50 = 2.2 µM) O Hybrid Structure (IC50 = 12 nM) %3! O Hit compound (IC50 = 36 µM) %3D Lomitapide (IC50 = 0.5 nM)6.1 A physician asked you to recommend a loading dose and a constant rate IV infusion of a drug to rapidly achieve a steady-state concentration of 15 mg/L. The half-life of this drug is 6 h and the volume of distribution is 30 L. What is your recommendation?5. Anesthetic gases used in surgery are known to bind to the hemoglobin molecule in red blood cells. The diagram below illustrates O2 binding curves of normal human HbA in the presence of the anesthetic gas dichloromethane (DCM). O UNTREATED 100 Symbols: a Dсм 23 Torr • DCM 50 Torr x DCM I00 Torr o, 0 Torr DCM; О, 23 Torr DСМ Д, 50 Torr DСМ x, 100 Torr DCM. 80 60 40 (1 Torr = 1 mm Hg.) 20 The solutions were buffered to pH 7.4. 0.5 1.0 1.5 2.0 log p02 For the curves at 0 and 100 Torr of dichloromethane, draw their equivalent in the form of (a) (* Hill plots. Label the axes and indicate on both the plot above and the Hill plot where the value of the dissociation equilibrium constant Kd for O2 binding is defined for 0 and 100 Torr of dichloromethane Kd Hb(O2)n nO2 Hb + Be sure to label the axes, indicate the units on both axes, and make the Hill plot so that the values of Kd are equivalent to those on the saturation plot above. Indicate whether cooperativity, as indicated by the Hill…
