Photosynthesis and Respiration
If the oxygen is labeled in CO2 and provide this CO2 to a plant, where it is expected to find this labeled oxygen after the plant had undergone photosynthesis?

In the water used
In the carbohydrate produced
In the oxygen given off by the plant
In the NADPH

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Photosynthesis and Respiration
Glycolysis takes places in the __________ and produces __________ , which in the presence of oxygen then enters the __________ .

cytosol; pyruvate; mitochondrion to complete fermentation
cytosol; pyruvate; mitochondrion to complete cellular respiration
mitochondrion; pyruvate; chloroplast to complete photosynthesis
cytosol; glucose; mitochondrion to complete fermentation

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