What is the full form of atp?

ATP stands for Adenosine Triphosphate.

ATP is known as the energy currency of the cell because it stores and supplies energy for various cellular activities. When a cell needs energy for processes such as muscle contraction, active transport, or protein synthesis, ATP releases energy by breaking one of its phosphate bonds.

Almost all living organisms use ATP to power essential life processes. Without ATP, cells would not be able to perform the functions needed for survival.