Which molecule most likely has the greatest amount of stored energy in its

bonds?

The molecule that has the greatest amount of energy stored in it's bonds is ATP (adenosine triphosphate).

Explanation:

An ATP molecule is known to be the most important storing as well as transferring energy molecule of the body. When an adenosine diphosphate molecule (ADP) gets converted into Adenosine triphosphate (ATP), a high amount of energy gets stored between the second and third phosphate. This energy comes from cellular respiration. Hence, ATP is the molecule carrying high energy, mainly in its phosphates bonds.

When the bonds between ATP are broken, it gets converted back into ADP releasing high amounts of energy.