Multiple Choice
Plants give off O2 because
A) O2 results from the incorporation of CO2 into sugars.
B) they do not respire; they photosynthesize.
C) water is the initial electron donor, leaving O2 as a photosynthetic by-product.
D) electrons moving down the electron chain bind to water, releasing O2.
E) O2 is synthesized in the Calvin cycle.
Correct Answer:
Verified
Correct Answer:
Verified
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