Word: rhodopsin
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Experiments on the phenomenon, long an enigma, have been going on here for over a year. George Wald, professor of Biology, Ruth H. Hubbard, research fellow in Biology, and Paul K. Brown, reported to the Society last year that they could manufacture synthetic rhodopsin, a red pigment found in the retina which helps translate light waves into the sensation of sight...
...first paper on the subject, Miss Hubbard told how four substances were assembled to produce the synthetic rhodopsin...
When placed in the dark, the mixture undergoes certain changes as the various ingredients inter-act. A yellow pigment is formed first, then the red rhodopsin...
Dark adaptation, the process whereby the eye slowly becomes more sensitive to dim light, is due to this synthesis of the four substances in rhodopsin...