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Photosynthesis

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  1. A photosynthesising plant is releasing 18O more than the normal. The plant must have been supplied with
    1. O3
    2. H2O with 18O
    3. CO2 with 18O
    4. C6H12O6 with 18O
Correct Option: B

The phenomenon of breaking up of water into hydrogen and oxygen in the illuminated chloroplasts is called photolysis. Oxygen comes from photolysis of water was verified by Ruben & Kamen (1941).


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