Glycogen: Difference between revisions

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Glycogen is a branched [[Polysaccharide|polysaccharide]] used&nbsp;as a readily&nbsp;available storage of [[Glucose|glucose]]&nbsp;largely found in [[Liver|liver]] and [[Muscle|muscle]] cells.&nbsp; It consists of a chain of alpha glucose&nbsp;molecules joined together mostly by 1-4 glycosidic bonds but 1-6 glycosidic linkages are also present approximately every 10 glucose residues, these linkages form the 'branches'.<ref>Berg J., Tymoczko J. and Stryer L. (2007) Biochemistry, 6th edition, New York: WH Freeman. Page 592</ref>  
Glycogen is a branched [[Polysaccharide|polysaccharide]] used&nbsp;as a readily&nbsp;available storage of [[Glucose|glucose]]&nbsp;largely found in [[Liver|liver]] and [[Muscle|muscle]] cells.&nbsp; It consists of a chain of alpha glucose&nbsp;molecules joined together mostly by 1-4 glycosidic bonds but 1-6 glycosidic linkages are also present approximately every 10 glucose residues, these 1-6&nbsp;linkages form the 'branches'.<ref>Berg J., Tymoczko J. and Stryer L. (2007) Biochemistry, 6th edition, New York: WH Freeman. Page 592</ref>  


The glycogen store in [[Muscle|muscle]] is released for [[Muscle|muscle]] cells, whereas the glycogen released by liver cells is released for other cells. Glycogen is broken and used when cells require more [[ATP|ATP]] than they can produce from the bloodstream&nbsp;<ref>Alberts B., Johnson A., Lewis J., Raff M., Roberts K. and Walter P. (2008) Molecular Biology of the cell, 5th edition, New York: Garland Science.</ref>.  
The glycogen store in [[Muscle|muscle]] is released for [[Muscle|muscle]] cells, whereas the glycogen released by liver cells is released for other cells. Glycogen is broken and used when cells require more [[ATP|ATP]] than they can produce from the bloodstream&nbsp;<ref>Alberts B., Johnson A., Lewis J., Raff M., Roberts K. and Walter P. (2008) Molecular Biology of the cell, 5th edition, New York: Garland Science.</ref>.  

Revision as of 20:16, 7 January 2011

Glycogen is a branched polysaccharide used as a readily available storage of glucose largely found in liver and muscle cells.  It consists of a chain of alpha glucose molecules joined together mostly by 1-4 glycosidic bonds but 1-6 glycosidic linkages are also present approximately every 10 glucose residues, these 1-6 linkages form the 'branches'.[1]

The glycogen store in muscle is released for muscle cells, whereas the glycogen released by liver cells is released for other cells. Glycogen is broken and used when cells require more ATP than they can produce from the bloodstream [2].


References

  1. Berg J., Tymoczko J. and Stryer L. (2007) Biochemistry, 6th edition, New York: WH Freeman. Page 592
  2. Alberts B., Johnson A., Lewis J., Raff M., Roberts K. and Walter P. (2008) Molecular Biology of the cell, 5th edition, New York: Garland Science.