What uses O2 cellular respiration or photosynthesis???

Biology · High School · Tue Nov 03 2020

Answered on

Cellular respiration uses O2 during its process. It can be seen in the equation:

C6H12O6 + 6O2 → 6CO2 + 6H2O 

The process uses sugar molecule and six oxygen molecules to yield six carbon dioxide molecules and six water molecules. It is the direct opposite of photosynthesis, which has the chemical equation:

6CO2 + 6H2O  → C6H12O6 + 6O2

Photosynthesis involves the used of six carbon dioxide molecules, six water molecules, and sunlight to yield sugar molecules, and six oxygen molecules.