title: On the state 1-state 2 phenomenon in photosynthesis.
mesh_terms: D002708:Chlorella / Q000378:metabolism*; D003624:Darkness; D004566:Electrodes; D007700:Kinetics; D008027:Light; D008433:Mathematics; D010100:Oxygen / Q000378:metabolism; D010788:Photosynthesis; D011789:Quantum Theory; D013997:Time Factors
chemical_list: D010100:Oxygen