Biologically Active Substance
retinal pigment
ret·i·nal pig·ment
Definitions related to retinal pigments:
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(visual pigment) Photopigments in retinal rods and cones that respond to certain colors of light and initiate the process of vision.CRISP ThesaurusNational Institutes of Health, 2006
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Photosensitive protein complexes of varied light absorption properties which are expressed in the PHOTORECEPTOR CELLS. They are OPSINS conjugated with VITAMIN A-based chromophores. Chromophores capture photons of light, leading to the activation of opsins and a biochemical cascade that ultimately excites the photoreceptor cells.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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