ATP is used and released during the metabolic processes.
Step-by-step explanation:
In the process of Respiration, a glucose molecule is eventually broken down into carbon dioxide and water. During this process, some ATP is produced directly in the reactions that transform glucose. However, more ATP is produced later in a process called oxidative phosphorylation.
Oxidative phosphorylation takes place by the movement of electrons through the electron transport chain, a series of proteins embedded in the inner membrane of the mitochondrion.
Fermentation process takes place when the availability of oxygen is less. In this process glucose instead of converting into CO2 and water gets converted into lactic acid or any other alcohol.