In which of the following ways is proteobacterial photosynthesis different from plant photosynthesis?
a. Proteobacterial photosynthesis uses a different molecule than chlorophyll.
b. Proteobacterial photosynthesis does not produce oxygen.
c. Proteobacterial photosynthesis uses water as an electron donor.
d. Proteobacterial photosynthesis uses a different molecule than chlorophyll and does not produce oxygen
e. Proteobacterial photosynthesis occurs in the dark.
ANSWER: b
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