Science glossary film: ATP

Adenosine triphosphate, a molecule that acts as an energy store in all living cells. It is produced by respiration, and used as the energy source in most cellular processes. The human body usually contains just 250g of ATP, the equivalent energy to a single AA battery. But because it is constantly being made and broken down, a typical human will turn over their own body weight in ATP in 24 hours.

It is produced by respiration, and used as the energy source in most cellular processes. The human body usually contains just 250g of ATP, the equivalent energy to a single AA battery. But because it is constantly being made and broken down, a typical human will turn over their own body weight in ATP in 24 hours.