ΔG° 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 + Pi → ATP                                                                       ΔG° = +7.3 kcal/mole B. glucose 1-phosphate → glucose 6-phosphate        ΔG° = −1.7 kcal/mole C. glucose + fructose → sucrose                                           ΔG° = +5.5 kcal/mole D. glucose → CO2 + H2O                                                         ΔG° = −686 kcal/mole

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