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    Suppose an experiment is performed in which plant I is supplied with normal carbon doixide but with water that contains radioactive oxygen atom. Plant II is supplied with normal water but with carbon dioxide that contains radioactive oxygen atoms. Each plant is allowed to perform photosynthesis, and oxygen gas and sugars produced are tested for radioactivity. Which plant would one expect to produce radioactive sugar and which one would produce radioactive oxygen gas?

    Why is that?

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    Solution Preview


    In the photosynthesis reaction, carbon dioxide, water and light give out glucose, oxygen and water.

    The first ...