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Transport Proteins - Physiology (view source)
Revision as of 17:23, 12 August 2008
, 17:23, 12 August 2008→Introduction
==Introduction==
==Introduction==
[[Image:facildiftri.jpg|right|thumb|200px|<small><center>Histology section of a normal renal cortex (© RVC 2008)</center></small>]]
[[Image:facildiftri.jpg|right|thumb|200px|<small><center>Schematic of a Transport Protein</center></small>]]
Transport proteins allow hydrophillic molecules, which are too large to get through water filled protein channels, to passively cross the membrane. The molecules bind to protein and then the protein changes shape depositing the molecule at the other side of the membrane. This transport method is also known as '''Facilitated Diffusion'''. As with diffusion it occurs from areas of high concentration to those of low.
Transport proteins allow hydrophillic molecules, which are too large to get through water filled protein channels, to passively cross the membrane. The molecules bind to protein and then the protein changes shape depositing the molecule at the other side of the membrane. This transport method is also known as '''Facilitated Diffusion'''. As with diffusion it occurs from areas of high concentration to those of low.