In a key reaction of glycolysis, dihydroxyacetone phosphate (DHAP) is isomerized into glyceraldehydes 3- phosphate (G3P)...
In another key reaction in glycolysis, phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate (GAP): Because deltaG' is positive, the equilibrium lies to the left. Calculate the equilibrium constant, and the equilibrium fraction of GAP from the above, at 37degreeC. Express your answer using two significant figures. In the cell, depletion of GAP makes the reaction proceed. What will deltaG be if the concentration of GAP is always kept at 1/100 of the concentration of DHAP? Express your answer to two significant...
In another key reaction in glycolysis, dihydroxyacetone phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate (GAP): The equilibrium constant is 5.4×10−2. Calculate the equilibrium fraction of GAP from the above, at 37 ∘C. CH2OH HC-OH ΔGor = +7.5 kJ/mol CH2OPO22 CH2OPO2 GAP DHAP
help with 15 and 16 Dihydroxyacetone (DHA) isomerizes to glyceraldehyde 3-phosphate (G3P): K = 0.0475 G3P (aq) DHAP (aq) what is the standard free energy change (AG") for this reaction and is this reaction exergonic or endergonic? R = 8.3 14 J mol-1 K-1 and T = 298K +7.55 kJ mol-1 II. 3.28 kJ mol1 III. -7.55 kJ mol- +3.28 kJ mol so the reaction is Vexergonic VI. endergonic CAlI and V HtI and VI A I and V b....
Open with Google Docs The reaction to the right describes the isomerization of dihydroxyacetone phosphate (DHAP) to glyceraldehyde-3-phosphate (GAP). It is a chemical equilibrium reaction that happens in the biochemical pathway that is part of the metabolism of glucose. The chemical equilibrium can be treated much like the dynamic equilibrium observed for the vapor pressure. Answer the following questions about this reaction: OH DHAP GAP GAP and the kinetics of GAP DHAP are first order processes. What are the rate...
A highly regulated reaction in glycolysis involves the addition of a second phosphate to fructose-6-phosphate, which could be be written as: Fructose-6-phostphate + Pi à Fructose-1,6-bisphosphate + H2O The ∆Go’ for this reaction is +16.8 kJ/mol In a muscle cell at 37 oC, assume the concentration of Fructose-6phosphate is 0.014 mM and the concentration of phosphate is 1 mM. a. What would be the equilibrium concentration of fructose-1,6bisphosphate under these conditions? b. What is Keq for this reaction? Show...
Question 1 - Linked Reactions (10 marks) The reaction catalysed by pyruvate kinase is: Phosphoenolpyruvate+ ADPpyruvateATP Keg 3.63 x 105 a) Calculate the AG" for this reaction. Show your working. 3 marks b) The hydrolysis of ATP has following equation: AG 30.5 kJ/mol Calculate the AG" for the following reaction: Phosphoenolpyruvate pyruvateP Show your working. 2 marks c) At 37 °C, the steady-state concentrations of phosphoenolpyruvate, ATP, and ADP have been measured to be 23 HM, 1.85 mM and 140...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow to happen within the myofiber? (5 points) 2. According to the paper, what is the major disadvantage of relying on glycolysis during high-intensity exercise? (5 points) 3. Using Figure 1 in the paper, briefly describe the different sources of ATP production at 50% versus 90% AND explain whether you believe this depiction of ATP production applies to a Type IIX myofiber in a human....