2. Experimental Determination of Keq' and AG If a 0.1 M solution of glucose 1-phosphate at 25 "C is incubated with a catalytic amount of phosphoglucomutase, the glucose 1-phosphate is transformed to glucosc 6-phosphate. At cquilibrium, the concentrations of the reaction components are * glucose6-phosphate 9.6x 10-2 M Glucosel-phosphate 4.5 x 10 M Calculate Keq' and AG" for this reaction.
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- 15.1 mg of β-carotene resulted in a blood plasma level of 43 nmol L-1 of Vitamin A.100% of the β-carotene is converted to Vitamin A (286 g mol-1), and that absorption of β-carotene occurs predominately in the small intestine in an aqueous volume of 600 mL, estimate the equilibrium constant for the reaction below:the ratio is 2 molecules of Vitamin A converted by enzymes from 1 molecule of β-caroteneVitamin A (intestine) ⇌Vitamin A (plasma)The Ksp for AG2SO4 is 1.2x10^-5 and the Ksp for CaSO4 is 4.93x10^-5. How do I find the Ca concentration?What would be the concentration of pyrophosphate that would remain in equilibrium without hydrolyzed when, by the action of inorganic pyrophosphatase, the concentration of orthophosphate was 20 mM. (∆Gº’ pyrophosphate hydrolysis = - 30.5 kJ / mol)
- Use the following equilibria2CH4(g) C2H6(g) + H2(g) Kc1 = 9.5 × 10-13CH4(g) + H2O(g) CH3OH(g) + H2(g) Kc2 = 2.8 × 10-21to calculate the value of Kc' for the following reaction:2CH3OH(g) + H2(g) C2H6(g) + 2H2O(g)Assume that in a certain cell, the ratio of products/reactants or Keq = 614.9 (Keq is dimensionless) for the reaction Glucose + ATP <> Glucose-6-P + ADP, at a particular instant, the concentrations of each compound were Glucose =4.3M, ATP =10.5M, ADP =17.3M and G-6-P =23.5M. Calculate the difference (dimensionless) between Keq and the ratio of products/ractants at this instance, in this cell, to five significant figures.Given that the Ksp for Ag2S is 6×10^-51, Kf=1.1×10^5 for AgCl2-, and Ka1 and Ka2 for H2S are 9.5×10^-8 and 1×10^-19, respectively, calculate the equilibrium constant for the following reaction .
- If, in addition to the constraints on glucose concentration listed previously, we have in the liver cell ATP concentration = 1 mM and ADP concentration == 3 mM, what is the theoretical concentration of glucose-6-phosphate at equilibrium at pH=7.4 and 37 ∘C?Which of the following electron donor/electron acceptor pairs represent potential energy reactions for bacterial growth? Assume that all reactants and products are at unit activity, except that at pH=7. Case Electron donor Electron acceptor A Acetate Carbon dioxide B Acetate Fe3+ (reduction to Fe2+) C Acetate H+ (reduction to H2) D Glucose H+ (reduction to H2) E H2 Carbon dioxide F H2 Nitrate (reduction to N2) G S (oxidized to sulfate) Nitrate (reduction to N2) H CH4 Nitrate (reduction to N2) I NH4+ (oxidized to nitrite) SO42- (reduction to H2S + HS-)Glycolysis is the process by which glucose is metabolized to lactic acid according to the equation C6H12O6(aq)2C3H6O3(aq) G=198 kJ at pH 7.0 and 25°C Glycolysis is the source of energy in human red blood cells. In these cells, the concentration of glucose is 5.0103 M, while that of lactic acid is 2.9103 M. Calculate AG for glycolysis in human blood cells under these conditions. Use the equation G=G+RT In Q, where Q is the concentration quotient, analogous to K.
- At a steady state in the living cell, (ATP) = 10-3M and (ADP) = 10-4 M. The maximum(equilibrium) value of the ratio (glycerol-1-P)/(glycerol) is observed to be 770 at 25 Cand pH=7.a. Calculate K and rG for the reaction.b. Using the value of rG for the reaction ADP + Pi →ATP + H2O, together with the answer topart (a), calculate rG and K for the reaction: glycerol + phosphate→ glycerol-1-phosphate+ H2OWhat is the Ksp for Ag2CrO4? Write the equation for the dissolving of solid Ag2CrO4 in water? Write the Ksp expression for the dissolving of Ag2CrO4?3) The enzyme aldolase catalyzes the conversion of fructose-1,6-diphosphate (FDP)to dihydroxyacetone phosphate (DHAP) and glyceraldehide-3-phosphate (G3P). Thereaction isFDP ⇄ DHAP + G3P , ∆rG0(298.15 K) = 23.8 kJ mol−1In red blood cells the concentration of these species are [FDP] = 35 µM, [DHAP] =130 µM, and [G3P] = 15 µM. (Remember that 1.0 µM = 1.0 × 10−6 mol L−1. Thestandard state for reactions in solution can be taken as c0 = 1.0 mol L−1).Calculate ∆rG in a red blood cell at 25 0C. Will the reaction occur spontaneouslyin the cell at this temperature?