What bond is broken in ATP to produce ADP and free energy?

The process of converting ATP (adenosine triphosphate) to ADP (adenosine diphosphate) involves breaking the bond between the second and third phosphate groups in the ATP molecule. This specific bond is known as a phosphate bond. When the terminal phosphate group is removed, energy is released, which can then be used for various cellular processes.

The energy that is liberated during this reaction is fundamental for powering activities such as muscle contractions, nerve impulse propagation, and other metabolic reactions. The role of phosphate bonds in ATP makes them crucial for energy transfer in biological systems.

Understanding this process highlights the importance of ATP as an energy currency in the cell, as the breaking of this phosphate bond is essential for energy release and utilization in living organisms.