When only PS I is functional, the electron is cycled back to the PS I complex from which electron carrier?
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Correct answer: Ferredoxin
In cyclic photophosphorylation, excited electrons from P700 are passed to ferredoxin and then cycled back to the cytochrome b6f complex and eventually back to P700, rather than being used to reduce NADP+.
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More Light Reactions of Photosynthesis questions
- How many protons are required to be pumped through the ATP synthase to produce one molecule of ATP in the chloroplast?
- Which of the following describes the correct sequence of electron flow in non-cyclic photophosphorylation?
- Manganese and Chloride ions are primarily associated with which process in photosynthesis?
- Which pigment appears as blue-green in a chromatogram?
- Which of the following is the primary photosynthetic pigment that forms the reaction center in both Photosystem I and Photosystem II?
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