In photosynthesis, what is the fate of the oxygen atoms present in CO2?
A. in sugar molecules
B. in sugar molecules and in water
C. as molecular oxygen
D. as molecular oxygen and in sugar molecules
E. in water
Answer (2)
In photosynthesis, the oxygen atoms from CO2 are incorporated into sugar molecules and released as molecular oxygen. This connection highlights the dual role of oxygen in plant respiration and the atmosphere. Hence, the answer is that they end up as molecular oxygen and in sugar molecules. ;
In photosynthesis, the oxygen atoms from CO2 are incorporated into sugar molecules and also released as molecular oxygen. This reflects the dual role of oxygen in this process. Therefore, the correct choice is D: as molecular oxygen and in sugar molecules.
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