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facilitated diffusion

facilitated diffusion The transport of molecules across the plasma membrane of a living cell by a process that involves a specific transmembrane carrier (see transport protein) located within the plasma membrane but does not require expenditure of energy by the cell. The carrier combines with a molecule at one face of the membrane, then changes shape so the molecule is moved through the membrane and released at the opposite face. It enables the diffusion through the membrane of molecules that otherwise could not pass through. Compare active transport.

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"facilitated diffusion." A Dictionary of Biology. . Encyclopedia.com. 22 Aug. 2017 <http://www.encyclopedia.com>.

"facilitated diffusion." A Dictionary of Biology. . Encyclopedia.com. (August 22, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/facilitated-diffusion-1

"facilitated diffusion." A Dictionary of Biology. . Retrieved August 22, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/facilitated-diffusion-1

facilitated diffusion

facilitated diffusion A carrier-mediated membrane-transport mechanism, driven by a diffusion gradient, that is important in the transport of materials into and out of cells.

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"facilitated diffusion." A Dictionary of Zoology. . Encyclopedia.com. 22 Aug. 2017 <http://www.encyclopedia.com>.

"facilitated diffusion." A Dictionary of Zoology. . Encyclopedia.com. (August 22, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/facilitated-diffusion-0

"facilitated diffusion." A Dictionary of Zoology. . Retrieved August 22, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/facilitated-diffusion-0

facilitated diffusion

facilitated diffusion A carrier-mediated membrane transport mechanism that is driven by a diffusion gradient.

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"facilitated diffusion." A Dictionary of Plant Sciences. . Encyclopedia.com. 22 Aug. 2017 <http://www.encyclopedia.com>.

"facilitated diffusion." A Dictionary of Plant Sciences. . Encyclopedia.com. (August 22, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/facilitated-diffusion

"facilitated diffusion." A Dictionary of Plant Sciences. . Retrieved August 22, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/facilitated-diffusion