Chapter 6, Problem 2CA

Energetics of the Hexokinase Reaction The standard-state free energy change. Gfor the hexokinase reaction, is — 1 6.7 kJ/mol. Use the values in Table I to calculate the value of Gfor this reaction in the erythrocyte at 37°C.

Describe the position of the transition state on a vertical energy scale, from low to high, relative to the position of the reactants and products, for both endergonic and exergonic reactions.

The energy released by the hydrolysis of ATP is primarily stored between the alpha and beta phosphates equal to -57 kcal/mol harnessed as heat energy by the cell to perform work providing energy to coupled reactions

MATHEMATICAL The free-energy change (G) for the oxidation of the cytochrome aa3 complex by molecular oxygen is 2102.3kJ=224.5kcal for each mole of electron pairs transferred. What is the maximum number of moles of ATP that could be produced in the process? How many moles of ATP are actually produced? What is the efficiency of the process, expressed as a percentage?