6. Photophosphorylation: Order the following mobile electron carriers (using the

Question

6. Photophosphorylation: Order the following mobile electron carriers (using the redox states given below) and protein complexes to illustrate the typical flow of electrons in light reaction (such as: NADP >PSI> PQ, ete but obviously not correct!) from the initial electron donor to the terminal electron acceptor in photophosphorylation in chloroplasts (8 points) Electron Carriers Cytochrome bf complex Ho NADP NADPH PhotosystemI (PSI) Photosystem II (PSI) Plastocyanin (Pc) Plastoquinone (PO) Order

Explanation / Answer

Answer:

Initial electron donor in light reaction of photosynthesis is water.

H2O ---Photosystem II (PSII)------Plastoquinone (PQ)----Cytochrome bf complex---Plastocyanin (Pc)----Photosystem I (PSI)----NADP+ ------NADPH

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