visual purple



visual purple defined in 1951 year

visual purple - visual purple;
visual purple - Compound of a protein with a prosthetic group of which Vitamin A is an essential precursor. Occurs in rods of vertebrate retina. Chemically changed (and bleached) by light, the change being basis of function of rods as light-sensitive receptors. Increases in amount in dark, raising sensitivity of rods to faint light (dark adaptation).

near visual purple in Knolik


viscushome
letter "V"
start from "VI"
vital staining

definition of word "visual purple" was readed 972 times

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