Photoreceptor

Photoreceptor

Photoreceptor can refer to:

In anatomy/cell biology:
*Photoreceptor cell: a photosensitive cell, most commonly referring to a specialized type of neuron found in the retina of vertebrate eyes that is capable of phototransduction
*Ocellus (invertebrate photoreceptor): a photoreceptor organ ("simple eye") of invertebrates often comprised of a few sensory cells and a single lens
*Eyespot apparatus (microbial photoreceptor): the photoreceptor organelle of a unicellular organism that allows for phototaxis

In biochemistry:
*Photoreceptor protein: a chromoprotein that responds to being exposed to a certain wavelength of light by initiating a signal transduction cascade
*Photopigment: an unstable pigment that undergoes a physical or chemical change upon absorbing a particular wavelength of light; also see
**Photosynthetic pigment: molecules involved in transducing light into chemical energy

In technology:
*Photodetector or photosensor: a device that detects light by capturing photons


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Look at other dictionaries:

  • photoreceptor — [fōt΄ō ri sep′tər] n. Biol. a sense organ specialized to detect light, as the eye or any of the elements of a compound eye photoreception n. photoreceptive adj …   English World dictionary

  • photoreceptor — fotojutiklis statusas T sritis automatika atitikmenys: angl. photoreceptor; photosensor vok. Photosensor, m; Photowandler, m rus. фотодатчик, m pranc. photorécepteur, m; photosenseur, m …   Automatikos terminų žodynas

  • Photoreceptor cell — This article is about cellular photoreceptors. For other types of photoreceptors, see Photoreceptor (disambiguation). Rods and cones redirects here. For the Blue Man Group song, see Rods and Cones (song). Neuron: Photoreceptor Cell …   Wikipedia

  • Photoreceptor cell-specific nuclear receptor — Nuclear receptor subfamily 2, group E, member 3 Identifiers Symbols NR2E3; ESCS; MGC49976; PNR; RNR; RP37; rd7 External IDs …   Wikipedia

  • Photoreceptor protein — Photoreceptors are light sensitive proteins involved in the sensing and response to light in a variety of organisms. Some examples are rhodopsin in the photoreceptor cells of the vertebrate retina, phytochrome in plants, and bacteriorhodopsin in… …   Wikipedia

  • photoreceptor — noun Date: 1906 a receptor for light stimuli …   New Collegiate Dictionary

  • photoreceptor — n. [Gr. phos, light; L. receptor, receiver] A sense organ responsive to light …   Dictionary of invertebrate zoology

  • photoreceptor — A specialized cell type in a multicellular organism that is sensitive to light. This definition excludes single celled organisms, but includes non eye receptors, such as snake infra red (heat) detectors or photosensitive pineal gland cells. See… …   Dictionary of molecular biology

  • photoreceptor — /foh toh ri sep teuhr/, n. Physiol., Biol. a receptor stimulated by light. [1905 10; PHOTO + RECEPTOR] * * * …   Universalium

  • photoreceptor — noun A specialized neuron able to detect, and react to light …   Wiktionary

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