The oxygen released during photosynthesis comes from molecules of water
True or False

The oxygen that was released during photosynthesis comes from water.

False

Photolysis takes place in the light dependent reaction of the photosynthesis. The reaction can be represented as:  H 2 O + 2 photons --> 2 e  −   + 2H  +   + O.  Here, the electrons released are accepted by the photosystem to fulfill the electron gap. The last electron acceptor is the oxygen and thus, the oxygen is liberated from the water molecule. The experiments conducted by Samuel Ruben and Martin Kamen by using radioactive isotopes helped to prove that the oxygen liberated during photosynthesis came from photolysis the water.

Explanation:

Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.Carbon dioxide is released during photosynthesis. Plants which synthesise their food themselves are called saprotrophs.

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