Does ATP or ADP store more energy?
Posted August 5, 2021
ATP has three phosphate groups with high energy bonds located between each group.
ADP has only two phosphate groups. ADP also has high energy bonds located between each group.
The presence of the third phosphate group and the additional high-energy bond between the second and third phosphate group in ATP enables it to store more energy than ADP, which does not have that third high-energy bond.