During photosynthesis,the oxygen in glucose ( | vedclass

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(B) During the process of photosynthesis,the chemical equation is $6CO_2 + 12H_2O \rightarrow C_6H_{12}O_6 + 6H_2O + 6O_2$.According to the experiment

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Carbon dioxide $(CO_2)$

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(B) During the process of photosynthesis,the chemical equation is $6CO_2 + 12H_2O \rightarrow C_6H_{12}O_6 + 6H_2O + 6O_2$.According to the experiments conducted by $C$.$B$. van Niel using purple and green sulfur bacteria,it was demonstrated that oxygen released during photosynthesis comes from water $(H_2O)$,not from carbon dioxide $(CO_2)$.Furthermore,isotopic labeling studies using $^{18}O$ have confirmed that the oxygen atoms present in the glucose molecule $(C_6H_{12}O_6)$ are derived from the carbon dioxide $(CO_2)$ molecules,while the oxygen released as a byproduct comes from water $(H_2O)$.

During photosynthesis,the oxygen in glucose $(C_6H_{12}O_6)$ comes from which of the following?

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