Which of the following isotopes are used to s | vedclass

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(B) The process of photosynthesis involves the fixation of carbon dioxide and the photolysis of water. $C^{14}$ (a radioactive isotope of carbon) is u

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

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(B) The process of photosynthesis involves the fixation of carbon dioxide and the photolysis of water. $C^{14}$ (a radioactive isotope of carbon) is used to trace the path of carbon in the Calvin cycle (dark reactions). $O^{18}$ (a heavy isotope of oxygen) is used to demonstrate that the oxygen evolved during photosynthesis comes from water and not from carbon dioxide. Therefore,$C^{14}$ and $O^{18}$ are the correct isotopes used in these studies.

Which of the following isotopes are used to study the process of photosynthesis?

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