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Calculate the GA of hydrolysis of phosphoenolpyruvate (PEP) in
inorganic phosphorus and pyruvate using the...
5.The following reaction has a ΔG°'--61.9 kJ/mol at 25°C, Phosphoenolpyruvate (PEP) +H2O Pyruvate + Inorganic Phosphate...
5.The following reaction has a ΔG°'--61.9 kJ/mol at 25°C, Phosphoenolpyruvate (PEP) +H2O Pyruvate + Inorganic Phosphate (Pi) (a) Is the reaction favorable under standard biochemical conditions? Explain your answer. (b) What is the equilibrium constant (K) of this reaction at 25°C? In cells the direct hydrolysis of PEP rarely occurs. Rather, the hydrolysis of PEP and the reverse hydrolysis of ATP are coupled (c) w rite out the coupled reaction and determine its ΔG at 25°C The hydrolysis of ATP...
The reaction catalysed by pyruvate kinase is: K'eg 3.63 x 105 Phosphoenolpyruvate + ADP -> pyruvate ATP a) Calculate the AG°" for this reaction. Show your working. 3 marks b) The hydrolysi...
The reaction catalysed by pyruvate kinase is: K'eg 3.63 x 105 Phosphoenolpyruvate + ADP -> pyruvate ATP a) Calculate the AG°" for this reaction. Show your working. 3 marks b) The hydrolysis of ATP has following equation: ATP+H20ADP P AG-30.5 kJ/mol Calculate the AG" for the following reaction: Phosphoenolpyruvate -> pyruvate Pi Show your working. 2 marks c) At 37 °C, the steady-state concentrations of phosphoenolpyruvate, ATP, and ADP have been measured to be 23 μΜ, 1.85 mM and 140...
4. Consider the following reaction: ATP + pyruvate phosphoenolpyruvate + ADP Given: Standard free energy of...
4. Consider the following reaction: ATP + pyruvate phosphoenolpyruvate + ADP Given: Standard free energy of hydrolysis for ATP to ADP is -30.5 kJ/mol Standard free energy of hydrolysis for phosphenolpyruvate to pyruvate is -61.9 kJ/mol Calculate AGⓇ and Key for this reaction.
like me to grade. I vow did the take homeow 1. In glycolysis, the enzyme pyruvate...
like me to grade. I vow did the take homeow 1. In glycolysis, the enzyme pyruvate the enzyme pyruvate kinase catalyzes this reaction phosphoenolpyruvate + ADP - pyruvate + ATP caction using the information provided a. What is the equilibrium constant for below? (R-8.315 J/mol K; T = 298 K) Reaction 1: ATP - ADP +P Reaction 2: phosphoenolpyruvate vale pyruvate + PAG AG"=-30.5 kJ/mol pyruvate + P AGⓇ = -61.9 kJ/mol ntrations are provided below, what is the actual...
Part F Calculate the energy available from hydrolysis of ATP if the ATP/ADP ratio is 5:1,...
Part F Calculate the energy available from hydrolysis of ATP if the ATP/ADP ratio is 5:1, the inorganic phosphate concentration is 50 mM and the temperature is 37°C? (Assume AG' = -7.3 kcal/mol for ATP hydrolysis.) Express your answer as an integer. AG' = -10100 cal/mol Submi Previous Answers Correct Part 1 Calculate the energy needed to synthesize ATP if the temperature is 25°C, and the ATP, ADP and inorganic phosphate concentrations are as in part F? (Assume AG' =-7.3...
stion 8 of 25 > The table lists the standard free energies of hydrolysis (AGⓇ) of...
stion 8 of 25 > The table lists the standard free energies of hydrolysis (AGⓇ) of some phosphorylated compounds. Compound kJ mol kcal mol-1 Phosphoenolpyruvate (PEP) -61.9 --14.8 1,3-Bisphosphoglycerate (1,3-BPG) -49.4 - 11.8 Creatine phosphate -43.1 ATP (to ADP) -30.5 -7.3 Glucose 1-phosphate -20.9 -5.0 Pyrophosphate (PP) Glucose 6-phosphate Glycerol 3-phosphate -9.2 -2.2 10.3 -4.6 -13.8 3.3 What is the direction of each of the following reactions when the reactants are initially present in equimolar amounts? The reaction ATP+H,O -...
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 work...
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...
Question 1Coupled Reactions: (a) Calculate Keq for the metabolically unfavourable reaction A → B, for which...
Question 1Coupled Reactions: (a) Calculate Keq for the metabolically unfavourable reaction A → B, for which DGo’=25 kJ mol-1 (b) Using DGo ’ = -32.2 kJ mol-1 for the hydrolysis of ATP, calculate Keq for the coupled reaction A + ATP + H2O → B + ADP + Pi (Hint: consider the two half reactions separately) (c) Assuming the ratio of ATP:[ADP x Pi] is 10-4 , calculate the ratio of A:B in the coupled reaction. (d) How do the...
3. From data in the table below calculate the AG for each of the following reactions....
3. From data in the table below calculate the AG for each of the following reactions. Show all your work and calculations. (4 points) Phosphoenolpyruvate ADP Pyruvate ATP A) ATP3-Phosphoglycerate ADP 1,3-Biphosphoglycerate B) Standard Free Energies of Hydrolysis of Some Phosphorylated Compounds and Acetyl-CoA (a Thioester) AG (keal/mol) Phosphoenolpyruvate 13-Bisphosphoglycerate (3-phosphoglycerate+ P Phosphocreatine ADP (AMP+ P) ATP (ADP+P ATP (AMP+PP) -14.8 -11.8 -10.3 -7.8 -7.3 -10.9 AMP ( adenosine + P) PP,(2P Glucose 3-phosphate -3.4 -4.0 -6.0 Fructose 6-phosphate Glucose...
blems key step in the biosynthesis of triglycerides (fats) is the ion of glycerol to glycerol-1-phosphate...
blems key step in the biosynthesis of triglycerides (fats) is the ion of glycerol to glycerol-1-phosphate by ATP: glycerol +ATP glycerol-1-phosphate + ADP At a steady state in the living cell, (ATP) 10- M and (ADP)-10 M. The maximum (equilibrium) value of the ratio (glycerol-1-P(glycerol) is observed to be 770 at 25°C and pH 7. a. Calculate K' and A,G298 for the reaction. b. Using the value of A,G98" for the reaction ADP P ATP H20, together with the answer...
5.The following reaction has a ΔG°'--61.9 kJ/mol at 25°C, Phosphoenolpyruvate (PEP) +H2O Pyruvate + Inorganic Phosphate (Pi) (a) Is the reaction favorable under standard biochemical conditions? Explain your answer. (b) What is the equilibrium constant (K) of this reaction at 25°C? In cells the direct hydrolysis of PEP rarely occurs. Rather, the hydrolysis of PEP and the reverse hydrolysis of ATP are coupled (c) w rite out the coupled reaction and determine its ΔG at 25°C The hydrolysis of ATP...
The reaction catalysed by pyruvate kinase is: K'eg 3.63 x 105 Phosphoenolpyruvate + ADP -> pyruvate ATP a) Calculate the AG°" for this reaction. Show your working. 3 marks b) The hydrolysis of ATP has following equation: ATP+H20ADP P AG-30.5 kJ/mol Calculate the AG" for the following reaction: Phosphoenolpyruvate -> pyruvate Pi Show your working. 2 marks c) At 37 °C, the steady-state concentrations of phosphoenolpyruvate, ATP, and ADP have been measured to be 23 μΜ, 1.85 mM and 140...
4. Consider the following reaction: ATP + pyruvate phosphoenolpyruvate + ADP Given: Standard free energy of hydrolysis for ATP to ADP is -30.5 kJ/mol Standard free energy of hydrolysis for phosphenolpyruvate to pyruvate is -61.9 kJ/mol Calculate AGⓇ and Key for this reaction.
like me to grade. I vow did the take homeow 1. In glycolysis, the enzyme pyruvate the enzyme pyruvate kinase catalyzes this reaction phosphoenolpyruvate + ADP - pyruvate + ATP caction using the information provided a. What is the equilibrium constant for below? (R-8.315 J/mol K; T = 298 K) Reaction 1: ATP - ADP +P Reaction 2: phosphoenolpyruvate vale pyruvate + PAG AG"=-30.5 kJ/mol pyruvate + P AGⓇ = -61.9 kJ/mol ntrations are provided below, what is the actual...
Part F Calculate the energy available from hydrolysis of ATP if the ATP/ADP ratio is 5:1, the inorganic phosphate concentration is 50 mM and the temperature is 37°C? (Assume AG' = -7.3 kcal/mol for ATP hydrolysis.) Express your answer as an integer. AG' = -10100 cal/mol Submi Previous Answers Correct Part 1 Calculate the energy needed to synthesize ATP if the temperature is 25°C, and the ATP, ADP and inorganic phosphate concentrations are as in part F? (Assume AG' =-7.3...
stion 8 of 25 > The table lists the standard free energies of hydrolysis (AGⓇ) of some phosphorylated compounds. Compound kJ mol kcal mol-1 Phosphoenolpyruvate (PEP) -61.9 --14.8 1,3-Bisphosphoglycerate (1,3-BPG) -49.4 - 11.8 Creatine phosphate -43.1 ATP (to ADP) -30.5 -7.3 Glucose 1-phosphate -20.9 -5.0 Pyrophosphate (PP) Glucose 6-phosphate Glycerol 3-phosphate -9.2 -2.2 10.3 -4.6 -13.8 3.3 What is the direction of each of the following reactions when the reactants are initially present in equimolar amounts? The reaction ATP+H,O -...
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...
3. From data in the table below calculate the AG for each of the following reactions. Show all your work and calculations. (4 points) Phosphoenolpyruvate ADP Pyruvate ATP A) ATP3-Phosphoglycerate ADP 1,3-Biphosphoglycerate B) Standard Free Energies of Hydrolysis of Some Phosphorylated Compounds and Acetyl-CoA (a Thioester) AG (keal/mol) Phosphoenolpyruvate 13-Bisphosphoglycerate (3-phosphoglycerate+ P Phosphocreatine ADP (AMP+ P) ATP (ADP+P ATP (AMP+PP) -14.8 -11.8 -10.3 -7.8 -7.3 -10.9 AMP ( adenosine + P) PP,(2P Glucose 3-phosphate -3.4 -4.0 -6.0 Fructose 6-phosphate Glucose...
blems key step in the biosynthesis of triglycerides (fats) is the ion of glycerol to glycerol-1-phosphate by ATP: glycerol +ATP glycerol-1-phosphate + ADP At a steady state in the living cell, (ATP) 10- M and (ADP)-10 M. The maximum (equilibrium) value of the ratio (glycerol-1-P(glycerol) is observed to be 770 at 25°C and pH 7. a. Calculate K' and A,G298 for the reaction. b. Using the value of A,G98" for the reaction ADP P ATP H20, together with the answer...
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