scotopsin

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scotopsin — The protein moiety of the pigment in the rods of the retina. * * * sco·top·sin skə täp sən n a protein in the retinal rods that combines with retinal to form rhodopsin * * * sco·top·sin (sko topґsin) the opsin of the rods of the retina that… … Medical dictionary
visual pigment — ▪ physiology any of a number of related substances that function in light reception (photoreception) by animals by transforming light energy into electrical (nerve) potentials. It is believed that all animals employ the same basic… … Universalium
opsin — The protein portion of the rhodopsin molecule; at least three separate opsins are located in cone cells. * * * op·sin äp sən n any of various colorless proteins that in combination with retinal or a related prosthetic group form a visual pigment… … Medical dictionary
Vitamine — [v ; lateinisch vita »Leben« und Amine], Singular Vitamin das, s, zusammenfassende Bezeichnung für eine Gruppe chemisch sehr unterschiedlicher, v. a. von Pflanzen und Bakterien synthetisierter Substanzen, die für den Stoffwechsel der … Universal-Lexikon
11-cis retinal — a retinal isomer that combines with opsins to form photoreceptive molecules, in the rods combining with scotopsin to form rhodopsin and in the cones combining with photopsins to form several iodopsins. In the presence of light, it is converted to … Medical dictionary

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