No, oxygen is not a product of cellular respiration; it is actually a reactant in the process.
Cellular respiration is a series of metabolic reactions that cells use to convert glucose and oxygen into energy (in the form of ATP), carbon dioxide, and water. The general equation for cellular respiration can be summarized as follows:
C6H12O6 (glucose) + 6O2 (oxygen) → 6CO2 (carbon dioxide) + 6H2O (water) + energy (ATP)
In this equation, glucose and oxygen are the main inputs. The oxygen is utilized by the cells to help break down glucose, leading to the production of ATP, which powers various cellular activities. As a result of this process, carbon dioxide and water are produced, along with the release of energy.
Thus, while oxygen is critical for the process of cellular respiration, it is not a product. Instead, it serves as a key ingredient that allows organisms to extract energy from food.