Answer :

Final answer:

Oxygen is a key reactant in cellular respiration, essential for generating energy in the form of ATP.


Explanation:

Oxygen is a crucial reactant in cellular respiration, as it is used in mitochondria to generate energy in the form of ATP during oxidative phosphorylation. The overall equation for cellular respiration involves the breakdown of glucose with the presence of oxygen to produce carbon dioxide, water, and energy.


Learn more about Cellular respiration and reactants here:

https://brainly.com/question/29775547