Light to electronical information vision

If one wishes to study the information transfer from the environment into the living cell, light is the stimulus which is most convenient to generate, control and 

Meanwhile, the receptor has passed the information contained in the original photon on to a G-protein called transducin by catalysing the exchange of transducin- 

Of course, the bulk of the global photosynthesis turnover goes through the chloro-plasts of green plants, with the photosynthetic reaction center entirely unrelated to rhodopsins. 

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