Solution to PS 5 #5

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During cyclic electron transport, reduced ferredoxin donates its electrons back to P700 via the cytochrome bf complex.  As the electrons cycle again though PSI, the proton gradient generated by the cytochrome bf complex drives ATP synthesis.  However, no NADPH is produced because there is no net electron flow from H2O to ferredoxin. No O2 is produced because PS II, the site of O2 production is not involved in cyclic electron transport.

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