PhotochemistryPhotochemical ProcessesPhotosystem II Protein ComplexPhotosynthesisChlorophyllLightExobiologyChenopodiaceaePhotolysisHalorhodopsinsPhotosynthetic Reaction Center Complex ProteinsEarth (Planet)AtmosphereLight-Harvesting Protein ComplexesBacteriorhodopsinsDesonidePhotoreceptors, MicrobialPlant LeavesRhodopsinPhycobiliproteinsSensory RhodopsinsQuantum TheoryLasersPhotonsCryptochromesFluorescenceWaterHalobacteriumRetinaldehydeSpectrophotometryRetinal PigmentsUltraviolet RaysSpectrum AnalysisCarbon DioxideFlavinsFlavoproteinsPhotosystem I Protein ComplexCyanobacteriaCarbonCarotenoidsElectron TransportRhodobacter sphaeroidesProtonsKineticsSpectrophotometry, UltravioletMolecular StructureSpectrophotometry, InfraredOxygenChloroplastsSpectrum Analysis, RamanElectron Spin Resonance SpectroscopyOxidation-ReductionIsomerismModels, ChemicalTemperatureSodium ChloridePlantsSpectrometry, FluorescenceHydrogen-Ion ConcentrationModels, MolecularTime FactorsPlant ProteinsBacterial ProteinsProtein Conformation