title: Absorption spectra of rhodopsin and its intermediates and orientational change of the chromophore.
mesh_terms: D000818:Animals; D001001:Anura; D002856:Chromatophores / Q000502:physiology*; D066298:In Vitro Techniques; D008027:Light; D011892:Rana catesbeiana; D012168:Retinal Pigments / Q000502:physiology*; D012243:Rhodopsin / Q000031:analogs & derivatives / Q000502:physiology*; D013054:Spectrophotometry, Atomic / Q000379:methods
chemical_list: D012168:Retinal Pigments; D012243:Rhodopsin