* C6H12O6: Glucose, a simple sugar, is the fuel source.

* 6O2: Six molecules of oxygen are used as the oxidizer.

* 6CO2: Six molecules of carbon dioxide are produced as a waste product.

* 6H2O: Six molecules of water are also produced as a byproduct.

The overall reaction:

Glucose (C6H12O6) reacts with oxygen (O2) to produce carbon dioxide (CO2), water (H2O), and energy (ATP) in the form of adenosine triphosphate.

In simpler terms:

Cellular respiration is how our cells break down sugar to release energy that our bodies can use. This energy is essential for everything we do, from breathing to thinking.