G° indicates the change in the standard free energy as a reactant is converted to product. Given what you know about these values, which reaction below is the most favorable?
(a) ADP + Pia`ATP ?G° = +7.3 kcal/mole
(b) glucose 1-phosphate a` glucose 6-phosphate ?G° = -1.7 kcal/mole
(c) glucose + fructosea`sucrose ?G° = +5.5 kcal/mole
(d) glucosea`CO2 + H2O ?G° = -686 kcal/mole
Answer: D