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

Light reactions of photosynthesis
Fermentation
Carbon fixation
Dark 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
Glycolysis; citric acid cycle; oxidative phosphorylation
Glycolysis; oxidative phosphorylation; citric acid cycle
Oxidative phosphorylation; citric acid cycle; glycolysis

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