Final answer:
ATP is a molecule found in all living cells that serves as the primary source of energy for cellular processes.
Step-by-step explanation:
ATP stands for adenosine triphosphate. It is a molecule found in all living cells and serves as the primary source of energy for cellular processes.
ATP is often referred to as the 'energy currency' of the cell. When ATP is broken down into adenosine diphosphate (ADP) and inorganic phosphate (Pi), energy is released and can be used by the cell to perform tasks such as muscle contraction, active transport, and synthesis of molecules.
The process of cellular respiration, specifically oxidative phosphorylation, produces ATP through the transfer of electrons in the electron transport chain. In this process, energy from nutrients, such as glucose, is converted into ATP molecules.
Learn more about ATP and its role as the primary source of energy in cells