Understand the structure of ATP (adenosine triphosphate), which consists of an adenosine molecule bonded to three phosphate groups.
Recognize that ATP is a high-energy molecule due to the presence of the three phosphate groups, particularly the bonds between these phosphates.
Learn that hydrolysis of ATP involves breaking the bond between the second and third phosphate groups, resulting in the formation of ADP (adenosine diphosphate) and an inorganic phosphate (Pi).
Know that the breaking of this bond releases energy, which can be used by the cell to perform various functions such as muscle contraction, active transport, and chemical synthesis.
Conclude that when ATP is hydrolyzed, energy is released, which is the correct answer to the problem.