Energy currency of the cell

The energy currency of the cell refers to molecules like ATP (adenosine triphosphate) that store and transfer energy needed for various cellular activities. Think of ATP as a rechargeable battery; when the cell needs energy—like for muscle movement, nerve signals, or building molecules—ATP releases a small portion of its stored energy. Afterward, it becomes ADP (adenosine diphosphate) and can be recharged back into ATP through metabolic processes. This efficient system allows cells to manage energy precisely where and when it’s needed, ensuring proper function and survival.