Photosynthesis and Respiration
Where does the O2 come from that is essential for the proper functioning of oxidative phosphorylation?

Carbon fixation
Dark reactions of photosynthesis
Fermentation
Light reactions of photosynthesis

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Photosynthesis and Respiration
Which of the following represents a correct ordering of the events that occur during the respiration of glucose in the absence of O2?

Glycolysis; fermentation
Oxidative phosphorylation; citric acid cycle; glycolysis
Glycolysis; oxidative phosphorylation; citric acid cycle
Glycolysis; citric acid cycle; oxidative phosphorylation

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

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

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