The role of oxygen in photosynthesis and in cellular respiration is: <em>Oxygen </em><em>is a product of </em><em>photosynthesis </em><em>and a reactant in </em><em>cellular respiration</em>.
<h3>What is Photosynthesis?</h3>
Photosynthesis is the process whereby green plants manufacture their food using energy from the sunlight, carbon dioxide and water to synthesize food in form of glucose and produce oxygen as a by-product.
<h3>What is Cellular Respiration?</h3>
Cellular respiration is a metabolic process in living organisms whereby glucose is broken down with the aid of oxygen, to release chemical energy.
Thus, the role of oxygen in photosynthesis and in cellular respiration is: <em>Oxygen </em><em>is a product of </em><em>photosynthesis </em><em>and a reactant in </em><em>cellular respiration</em>.
Learn more about photosynthesis on:
brainly.com/question/3529377
