Which isotopes were used in the study of phot | vedclass

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(D) In the study of photosynthesis,radioactive isotopes were used to trace the pathways of carbon and the source of oxygen.$1$. Melvin Calvin used the

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$C^{14}$ and $O^{18}$

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(D) In the study of photosynthesis,radioactive isotopes were used to trace the pathways of carbon and the source of oxygen.$1$. Melvin Calvin used the radioactive isotope $C^{14}$ to trace the path of carbon in the Calvin cycle (dark reaction).$2$. Scientists used the heavy isotope of oxygen,$O^{18}$,to demonstrate that the oxygen evolved during photosynthesis comes from water $(H_2O)$ and not from carbon dioxide $(CO_2)$.

Which isotopes were used in the study of photosynthesis?

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