What is the relationship between the oxygen and photosynthesis?

Photosynthesis is the process by which plants, algae, and some bacteria convert carbon dioxide and water into glucose and oxygen using sunlight as energy. During this process, chlorophyll absorbs light energy, which drives the chemical reactions that produce glucose and release oxygen as a byproduct. Thus, oxygen is generated during photosynthesis and is essential for the survival of aerobic organisms, including humans, as it is required for cellular respiration. In summary, photosynthesis not only provides energy-rich compounds for organisms but also sustains atmospheric oxygen levels.