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A photosynthe...

Question

A photosynthesising plant is releasing ¹⁸O more than the normal amounts; thus, the plant must be supplied with

O₃

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C₆H₁₂O₆ with ¹⁸O

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CO₂ with ¹⁸O

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H₂O with ¹⁸O

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Solution

The correct option is D
H₂O with ¹⁸O

Ruben, Hassid and Kamen, using an isotope of oxygen (¹⁸O) in water, found that oxygen evolved during photosynthesis comes from water.

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