COUPLED REACTION

Reaction ΔG [kJ/mol]ATP + H2O → ADP + Pi -30.5ADP + H2O → AMP + Pi -30.5ATP + H2O → AMP + PPi -40.6PPi + H2O → 2 Pi -31.8AMP + H2O → A + Pi -12.6

Energy released by high energy phosphate reactions

1 cal = 4.184 joules7.3*4.184= 30.54 joul

BIOLOGICAL OXIDATION