How Oxygen Gas Is Produced During Photosynthesis?.
Photosynthesis is the process by which plants and some bacteria and protists synthesize sugar molecules from carbon dioxide, water, and sunlight. Photosynthesis can be divided into two stages—the light dependent reaction and the light independent (or dark) reactions. During the light reactions, an electron is stripped from a water molecule freeing the oxygen and hydrogen atoms. The free oxygen atom combines with another free oxygen atom to produce oxygen gas which is then released.
