Water is the source of oxygen in photosynthesis.
water
Water
Plants produce oxygen when exposed to light. They do this by the process of photosynthesis. The oxygen comes from the splitting of water molecules to produce hydrogen ions and the oxygen is expelled as a waste product.
Plants need oxygen for aerobic respiration. Although photosynthesis produces oxygen as a waste product, and this oxygen is used for aerobic respiration, plants still need oxygen to survive, as the oxygen produced as a waste product of photsynthesis is not always sufficient to supply the plant with all the oxygen it needs.
In general outline, photosynthesis is the opposite of cellular respiration. CO2+ H2O+sunlight ----> O2 + H2O +carbohydrates.It uses carbon dioxide and the energy from sunlight to make carbohydrates and oxygen (a waste product from plants).
Glucose and Oxygen.
Water
The source of oxygen in the atmosphere is a complicate stellar process.
Oxygen comes from plants as the undergo photosynthesis. In photosynthesis they absorb water and basically split it and O2 in the water is released by the plants through the stomata. Oxygen also just exists in our atmosphere.
Oxygen is an important by-product (not waste) of photosynthesis and is needed by not only animals and other organisms, but also the plants which make it.
After you Breathe in Oxygen and then exhale Carbon Dioxide back to the Atmosphere, plants will process the Carbon Dioxide BACK into Oxygen. They due this through the Photosynthesis Process. The Plants were the original source of the Oxygen. This includes Plants that are found in the Oceans, Seas, Lakes, etc.
oxygen is a byproduct of photosynthesis in plants
During the process of photosynthesis, plants release oxygen into the air. This process is sometimes called the oxygen cycle when it refers to the role of plants in the production of oxygen for the planet.
photosynthesis
Most of autotrophic plants get major amount of oxygen from photosynthesis. During night, when there is no photosynthesis, oxygen by plants is obtained from air However, the amount of oxygen released during photosynthesis by plants is manifold of their requirement for respiration.
Oxygen is replaced with plants and photosynthesis. In photosynthesis plants take in carbon dioxide and expel oxygen. This is why having plants is important to sustain human life.
Why is it important that plants give off oxygen during photosynthesis
Plants produce oxygen when exposed to light. They do this by the process of photosynthesis. The oxygen comes from the splitting of water molecules to produce hydrogen ions and the oxygen is expelled as a waste product.