Lipid bi-layer: Difference between revisions
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The lipid bi-layer provides a basic impermeable barrier around cells, and is approximately 5nm thick. They help to maintain different environments between cytosol and the extracellular environment/organelles, and also control the transport of solutes between compartments.<ref name="null">Molecular Biology of the Cell, Alberts et al, 5th Edition (2007)Garland Science, New York Chapter 10 p617-65</ref> <references /> | The lipid bi-layer provides a basic impermeable barrier around cells, and is approximately 5nm thick. They help to maintain different environments between cytosol and the extracellular environment/organelles, and also control the transport of solutes between compartments.<ref name="null">Molecular Biology of the Cell, Alberts et al, 5th Edition (2007)Garland Science, New York Chapter 10 p617-65</ref> <references /> The lipid bilayer consists of four major [[Phospholipid|phospholipids ]]which are; phopshatidylethanolamine, phosphatidylserine, phosphatidycholine and sphingomyelin. These are derived from glycerol apart from sphingomyelin, which is derived form [[Phosphatidylserine|serine]]. Phosphatidylserine is the only one negatively charged. | ||
Revision as of 15:14, 12 November 2010
The lipid bi-layer provides a basic impermeable barrier around cells, and is approximately 5nm thick. They help to maintain different environments between cytosol and the extracellular environment/organelles, and also control the transport of solutes between compartments.[1]
- ↑ Molecular Biology of the Cell, Alberts et al, 5th Edition (2007)Garland Science, New York Chapter 10 p617-65
The lipid bilayer consists of four major phospholipids which are; phopshatidylethanolamine, phosphatidylserine, phosphatidycholine and sphingomyelin. These are derived from glycerol apart from sphingomyelin, which is derived form serine. Phosphatidylserine is the only one negatively charged.