Cell Biology

Step 1: Understanding the Concept:
Cells require a universally usable form of energy to drive biological processes.

Step 2: Detailed Explanation:
ATP stands for Adenosine Triphosphate.
It is the primary energy currency of the cell. Energy released during cellular respiration is trapped in the high-energy phosphate bonds of the ATP molecule. When the cell needs energy, these bonds are broken to release it.

Step 3: Final Answer:
Adenosine Triphosphate.