The enzyme aldolase catalyzes the conversion of fructose-1,6-diphosphate (FDP) to dihydroxyacetone phosphate (DHAP) and glyceraldehyde-3-phosphate (G3P). The reaction is with 4,G°(298.15 K) = 23.8 kJ mol- FDP → DHAP + G3P In red blood cells, the concentrations of these species are [FDP] = 35 µM, [DHAP] = 130 µM, and [G3P] = 15„M. Remember that 1.0 µM = 1.0 × 10-6 mol L-!. The standard state for reactions in solution can be taken to be 1.0 mol L-!. (a) Calculate A,G in a red blood cell at 25°C. (Note: A,G is not the same as A,Gº, as the substances in the blood cell are not in standard condi- tions). (b) Will the reaction occur spontaneously in the blood cell at this temperature?
The enzyme aldolase catalyzes the conversion of fructose-1,6-diphosphate (FDP) to dihydroxyacetone phosphate (DHAP) and glyceraldehyde-3-phosphate (G3P). The reaction is with 4,G°(298.15 K) = 23.8 kJ mol- FDP → DHAP + G3P In red blood cells, the concentrations of these species are [FDP] = 35 µM, [DHAP] = 130 µM, and [G3P] = 15„M. Remember that 1.0 µM = 1.0 × 10-6 mol L-!. The standard state for reactions in solution can be taken to be 1.0 mol L-!. (a) Calculate A,G in a red blood cell at 25°C. (Note: A,G is not the same as A,Gº, as the substances in the blood cell are not in standard condi- tions). (b) Will the reaction occur spontaneously in the blood cell at this temperature?
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter23: Organic Polymers, Natural And Synthetic
Section: Chapter Questions
Problem 46QAP: Glycolysis is the process by which glucose is metabolized to lactic acid according to the equation...
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