Final answer:
The high-energy bond in ATP is present between the second and third phosphate groups (beta and gamma), making it the greatest source of energy in a cell. Catabolic enzymes break this bond to release energy for cellular work.
Step-by-step explanation:
Adenosine triphosphate, or ATP, is a molecule that carries energy within cells. It is often referred to as the "energy currency" of the cell because it provides the energy needed for various cellular processes.
The high-energy bond in ATP is present between the second and third phosphate groups (beta and gamma). This bond is the greatest source of energy in a cell and is broken by catabolic enzymes to release energy for cellular work.