| 
                    
                     
| Search over one million articles, find something about almost anything!
 |  |  |  |  | 
   |  | 
                    
                     
| 
| Photosynthesis |  | 
... photophosphorylation
In cyclic electron flow, the electron originates in a pigment complex called photosystem I, passes from the primary acceptor to ferredoxin[?], ... |  |    |