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

Dark reactions of photosynthesis

Light reactions of photosynthesis

Where does the O₂ come from that is essential for the proper functio

1.	Where does the O₂ come from that is essential for the proper functioning of oxidative phosphorylation?
A.	Fermentation
B.	Light reactions of photosynthesis
C.	Dark reactions of photosynthesis
D.	Carbon fixation
Answer» C. Dark reactions of photosynthesis