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A red photopigment in the retinal rods of vertebrates
Answer for the clue "A red photopigment in the retinal rods of vertebrates ", 9 letters:
rhodopsin
Alternative clues for the word rhodopsin
Word definitions for rhodopsin in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Visual \Vis"u*al\, a. [L. visualis, from visus a seeing, sight: cf. F. visuel. See Vision .] Of or pertaining to sight; used in sight; serving as the instrument of seeing; as, the visual nerve. The air, Nowhere so clear, sharpened his visual ray. --Milton. ...
Wiktionary
Word definitions in Wiktionary
n. (context biochemistry English) A light-sensitive pigment in the rod cells of the retina; it consists of an opsin protein bound to the carotenoid retinal
WordNet
Word definitions in WordNet
n. a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light [syn: visual purple , retinal purple ]
Wikipedia
Word definitions in Wikipedia
Rhodopsin (also known as visual purple ) is a light -sensitive receptor protein involved in visual phototransduction . It is named after ancient Greek ῥόδον (rhódon) for “rose”, due to its pinkish color, and ὄψις (ópsis) for “sight”. Rhodopsin is a biological ...
Usage examples of rhodopsin.
The molecule of rhodopsin is made up of two parts: a protein, opsin, and a nonprotein portion, very similar in structure to vitamin A, which is retinene.
The shape of cis-retinene is such that it can combine with opsin to form rhodopsin, whereas trans-retinene cannot.
In the presence of light, cis-retinene is converted to trans-retinene and, if it already makes up part of the rhodopsin molecule, it falls off, leaving the largely colorless opsin behind.
In the dark, trans-retinene changes into cis-retinene and joins opsin once more to form the rhodopsin.
The molecule of rhodopsin is made up of two parts: a protein, opsin, and a nonprotein portion, very similar in structure to vitamin A, which is retinene.
The bleaching of rhodopsin and the narrowiviy of the pupil on re-emergence into full light is light adaptation.
It is commonly called visual purple (though it is not purple), but its more formal and more accurate name is rhodopsin (roh-dop'sin.