Two plants A and B are supplied with CO2 with H2O18 and CO182 with H2O respectively. Which of the following plant releases O18 type oxygen in photosynthesis?
A plant
None of the above
Both A and B
B plant
A
A plant
B
Both A and B
C
B plant
D
None of the above
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Solution
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During photosynthesis, oxygen evolved by the hydrolysis of water. If H2O18 is used in 'A' plant then it becomes true that O18 type of oxygen from 'A' plant during photosynthesis. This method of tracking can be done with the help of radio isotoping, which cross confirms the result.
So, the correct answer is option A.
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