1. Calculate the overall AG°' (reported up to two decimal places) for the net reaction. kJ/mol 2. Calculate the Keg (reported up to two decimal places and do not use scientific notation) for the net reaction at 298.15K.
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- Given the following information, calculate the physiological ΔG of the isocitrate dehydrogenase reaction at 25°C and pH 7.0: [NAD+]/[NADH] = 8, [α-ketoglutarate] = 0.1 mM, and [isocitrate] = 0.02 mM. Assume standard conditions for CO2 (ΔG°′ is given in Table). Is this reaction a likely site for metabolic control?Ethanol is oxidized in the liver to form acetate, which is then converted to acetyl-CoA. Determine how many molecules of ATP are produced from 1 mol of ethanol. (Note that 2 mol of NADH are produced when ethanol is oxidized to form acetate.)For myristic acid, C 13H 27CO 2H: (a) How many molecules of acetyl CoA are formed from complete β-oxidation? (b) How many cycles of β-oxidation are needed for complete oxidation?
- Calculate the ΔG for Malate dehydrogenase reaction of CAC if the concentration of oxaloacetate is 1x 10-8 M, malate is 0.2 mM, NAD+ is 10 mM and NADH is 0.1 mM in rat liver mitochondria. ΔGo’ for this reaction is 30 kJ/mole. Please write the units of the final answer and the formula you are using to solve. R = 0.008314kJ/K*mol, T = 298KConsider the oxidation of this compound:C3H5O3(OC4H7)3 + 18.5O2 → 15CO2 + 13H2O + 1, 941 kcal.a) Find the respiratory exchange ratio (RER), calorific equivalent, and energy release if theO2 is 2 liters/min. Are these values representative of fat? Why or why not? b) If the activity involves running for 45 minutes, how much kcal is expended?If palmitic acid is subjected to complete combustion in a bomb calorimeter, one can calculate a standard free energy of combustion of 9788 kJ/mol. From the ATP yield of palmitate oxidation, what is the metabolic efficiency of the biological oxidation, in terms of kilojoules saved as ATP per kilojoule released? (Ignore the cost of fatty acid activation.)
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