Facilitated Diffusion

The passive movement of molecules exceeding the rate expected by simple diffusion. No energy is expended in the process. It is achieved by the introduction of passively diffusing molecules to an enviroment or path that is more favorable to the movement of those molecules. Examples of facilitated diffusion are passive transport of hydrophilic substances across a lipid membrane through hydrophilic pores that traverse the membrane, and the sliding of a DNA BINDING PROTEIN along a strand of DNA.

Year introduced: 2009

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Tree Number(s): G01.154.280, G01.202.374, G02.196.500, G03.143.427

MeSH Unique ID: D055459

Entry Terms:

• Diffusion, Facilitated

Previous Indexing:

• Diffusion (1969-2008)

All MeSH Categories
Phenomena and Processes Category
Physical Phenomena
Biophysical Phenomena
Facilitated Diffusion

All MeSH Categories
Phenomena and Processes Category
Physical Phenomena
Diffusion
Facilitated Diffusion

All MeSH Categories
Phenomena and Processes Category
Chemical Phenomena
Diffusion
Facilitated Diffusion

All MeSH Categories
Phenomena and Processes Category
Metabolism
Biological Transport
Facilitated Diffusion