Answer:
See the answer below
Explanation:
Oxygen gas is produced during photosynthesis by photolysis of water in the chloroplasts of algae and green plants and in the thylakoid of cyanobacteria. The chlorophyll of photosystem II absorbs light energy which leads to the excitation and knocking out of an electron within the photosystem.
The energy released as a result of returning the electrons to the ground state in an acceptor molecule is used in splitting water molecules into hydrogen and oxygen. The electron released from the splitting of water replaces the one knocked out from the photosystem II while oxygen atoms from two water molecules combine to form diatomic oxygen which is later released as oxygen gas.
The whole process of photolysis of water and the release of oxygen gas happens during the light-dependent reaction of photosynthesis.
Oxygen gas produced from the reaction of carbondioxide and water.
During the process of photosynthesis, carbondioxide enters through small openings called stomata of the leaves and water is absorbed by the plant from the soil through their roots.
Leave is the structure where photosynthesis occurs. This carbondioxide and water reacts with each other in the presence of sunlight produces glucose and oxygen. Glucose is stored in different parts of the plant body such as root, stem and leaves etc.
Whereas some oxygen is used for the cellular respiration whereas the remaining oxygen is released in the atmosphere through stomata so we can say that oxygen is produced as a byproduct in the process of photosynthesis.
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