4. The conversion of citrate to isocitrate was found to have a AG" of 6.4 kJ/mol...
Go'=30.5 kJ/mol a) Calculate the equilibrium constant for this reaction at 25C. b) Because deltaGo' assumes standard pH of 7, the equilibrium constant calculated in (a) corresponds to Keq'= [oxaloacetate] [NADH]/ [L-malate] [NAD+] The measured concentration of L-malate in rat liver mitochondria is about 0.20 mM when [NAD+]/[NADH] is 10. Calculate the concentration of oxaloaceteate at pH 7 in mitochondria. c) To appreciate the magnitude of the mitochondrial oxaloacetate concentration, calculate the number of oxaloacetate molecules in a single rat...
Consider a general reaction enzyme A(aq) = B(aq) The AG*' of the reaction is –5.650 kJ. mol-?. Calculate the equilibrium constant for the reaction at 25 °C. Keq = What is AG for the reaction at body temperature (37.0 °C) if the concentration of A is 1.9 M and the concentration of B is 0.60 M? AG= kJ. mol-1
The value of Δ?°′ for the conversion of 3-phosphoglycerate to 2-phosphoglycerate (2PG) is +4.40 kJ/mol . If the concentration of 3-phosphoglycerate at equilibrium is 2.45 mM , what is the concentration of 2-phosphoglycerate? Assume a temperature of 25.0°C . Thank you :) The value of AGⓇ for the conversion of 3-phosphoglycerate to 2-phosphoglycerate (2PG) is +4.40 kJ/mol. If the concentration of 3-phosphoglycerate at equilibrium is 2.45 mm, what is the concentration of 2-phosphoglycerate? Assume a temperature of 25.0°C. [2PG] =...
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...
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...
emates 3 Homework Bioenergetics Biochemical reactions Resources Hint The value of AG® for the conversion of glucose-6-phosphate to fructose-6-phosphate (F6P) is +1.67 kJ/mol. If the concentration of glucose-6-phosphate at equilibrium is 2.55 mm, what is the concentration of fructose-6-phosphate? Assume a temperature of 25.0°C. [F6P] = mM
For the reaction CuS(s) + H2(g) → H2S(g) + Cu(s), AG°f (CuS) = -53.6 kJ/mol AG°f (H2S) = -33.6 kJ/mol AHºf (Cus) = -53.1 kJ/mol AHºf (H2S) = - 20.6 kJ/mol Calculate the value of the equilibrium constant (Kp) for this reaction at 298 K.
The value of ΔG°\' for the conversion of dihydroxyacetone phosphate to glyceraldehyde-3-phosphate (GAP) is 7.53 kJ/mol. If the concentration of dihydroxyacetone phosphate at equilibrium is 2.65 mM, what is the concentration of glyceraldehyde-3-phosphate? Assume a temperature of 25.0 °C. The constant R = 8.3145 J/(mol·K) [GAP] = ??? mM
Consider the following reaction and its AG at 25.00 °C. Fe2+(aq) +Zn(s)Fe(s)+ Zn2 (aq) AG=-60.73 kJ/mol Calculate the standard cell potential, E for the reaction. V Ell Calculate the equilibrium constant, K, for the reaction. K =
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...