In an experiment, the carbon dioxide available to a $$C3$$ plant was labelled with a radioactive isotope and the amount of radioactivity in the chloroplast was measured. As photosynthesis proceeded, in which of the following molecules did the radioactivity first appear?

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Use of radioactive $$14C$$  in photosynthesis studies led to the discovery that the first $$CO2$$ fixation product was a $$3-carbon$$ organic acid. The first product identified was $$3-phosphoglyceric$$ acid or in short PGA.

In an experiment, the carbon dioxide available to a C₃ plant was labelled with a radioactive isotope and the amount of radioactivity in the chloroplast was measured. As photosynthesis proceeded, in which of the following molecules did the radioactivity first appear?

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In an experiment, the carbon dioxide available to a C3 plant was labelled with a radioactive isotope and the amount of radioactivity in the chloroplast was measured. As photosynthesis proceeded, in which of the following molecules did the radioactivity first appear?

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Ready to Test Your Skills?

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In an experiment, the carbon dioxide available to a C₃ plant was labelled with a radioactive isotope and the amount of radioactivity in the chloroplast was measured. As photosynthesis proceeded, in which of the following molecules did the radioactivity first appear?