Multiple Choice
Biologists believe that in the earliest version of photosynthesis,the energized photosystem electron simply cycled back to the chlorophyll molecule.Which of the following limitations would NOT be imposed by such a system?
A) No molecular oxygen would be generated.
B) No electrons would be available to reduce the carbon in CO₂ .
C) Cells could produce ATP but not sugars.
D) Cells could produce O₂ but not sugars.
Correct Answer:

Verified
Correct Answer:
Verified
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