A structure in a living organism, especially a sensory cell or sense organ, that responds to light falling on it.
- Indeed, most organisms have evolved specialized photoreceptors for circadian light perception.
- Both Z and phototropin have been implicated as blue light photoreceptors of guard cells.
- All visual systems begin with photoreceptors, which are cells that respond to light energy.
- Example sentences
- The second mutant phenotype is a slower rate of photoreceptive disk membrane renewal in the outer segments, caused by perturbed phagocytosis of disk membranes.
- Higher plants have evolved a complex photoreceptive system involving distinct families of photoreceptors to perceive light signals.
- Visual pigments are photoreceptive molecules that occur in rod and cone photoreceptor cells in the retina and characterize the vision of an animal.
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