Consider the following two chemical equations:
A. glucose + fructose → sucrose + H₂O, Δ G = +27 kJ/mole (or +6.5 kcal/mole)
B. glucose + fructose + ATP → sucrose + ADP + P_i, Δ G = −5 kJ/mole (or −1.2 kcal/mole)
What is the overall Δ G ?

A) 22 kJ/mole
B) 32 kJ/mole
C) -32 kJ/mole
D) −135 kJ/mole
E) 135 kJ/mole

ATP

Adenosine triphosphate, a molecule that stores and transfers energy within cells, enabling metabolic processes to take place.

ADP

Adenosine diphosphate, a molecule involved in energy transfer within cells, and is produced through the breakdown of ATP, with the release of energy.

Sucrose

A disaccharide sugar composed of glucose and fructose, commonly known as table sugar.