title: On the origin of photophosphorylation.
mesh_terms: D005075:Biological Evolution; D004579:Electron Transport; D008956:Models, Chemical; D010785:Photophosphorylation; D010788:Photosynthesis; D011166:Porphyrins; D011809:Quinones
chemical_list: D011166:Porphyrins; D011809:Quinones