The Photoreceptor reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Photoreceptor

Photoreceptors are light-sensitive proteins involved in the function of photoreceptor cells. Some examples are rhodopsin in our retina, phytochrome in plants, and bacteriorhodopsin in some bacteria.

Photoreceptor can also refer to the cellss found in ommatidia and retina that contain these photosensitive pigments (see photoreceptor cell).

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