Photosynthesis in Higher PlantsHard
Question
A photosynthesizing plant is releasing 18O more than the normal. The plant must have been supplied with
Options
A.O3
B.H2O with 18O
C.CO2 with 18O
D.C6H12O6 with 18O
Solution
Ruben, Hassid and Kamen (1941) using heavy isotope of oxygen, 18O in water, found that oxygen evolved in photosynthesis comes from water. Evolution of oxygen does not require carbon dioxide.
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