Here's why:
* ATP is the primary energy currency of cells: It's like the "gasoline" that powers all cellular processes, from muscle contraction and protein synthesis to nerve impulse transmission and maintaining cell structure.
* Cellular respiration breaks down glucose: This breakdown releases energy stored within the glucose molecule.
* This energy is used to create ATP: Cellular respiration converts this released energy into a usable form - ATP.
In essence, cellular respiration is the process that converts food energy into a form that cells can use to perform their essential functions.
