Adenosine Diphosphate (ADP): A molecule formed when one phosphate group is removed from ATP. ADP can be converted back into ATP through cellular respiration, where energy is stored for later use.
Inorganic Phosphate (Pi): The inorganic phosphate released during ATP hydrolysis. It can be recycled and used to regenerate ATP through processes like oxidative phosphorylation.
Cellular Respiration: The process by which cells convert glucose and oxygen into carbon dioxide, water, and ATP. It involves multiple chemical reactions, including the hydrolysis of ATP to release energy that fuels cellular activities.