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The Endoplasmic Reticulum. By: Amy Jo Wininger, Tia Monroe and Ethan Ferguson. Endoplasmic Reticulum (ER). Was discovered in 1945 by Albert Claude in Belgium, and Keith Porter at Rockefeller Institute (It was first noticed in the cytoplasm of chick embryo cells).

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The Endoplasmic Reticulum

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The Endoplasmic Reticulum

By: Amy Jo Wininger, Tia Monroe and Ethan Ferguson


Endoplasmic Reticulum (ER)

  • Was discovered in 1945 by Albert Claude in Belgium, and Keith Porter at Rockefeller Institute (It was first noticed in the cytoplasm of chick embryo cells).

  • The endoplasmic reticulum is a network of folded membranes that form channels.

  • The Endoplasmic Reticulum makes protein and lipid components.

  • Consists of a smooth ER and a rough ER.

  • This organelle is responsible of moving proteins and other carbohydrates to the Golgi Apparatus, lysosomes, and other places which need carbohydrates.


Rough Endoplasmic Reticulum (RER)

  • The RER is dotted with ribosomes. (Which is why it is called “rough.”)

  • The RER is involved with protein production, protein folding, quality control and dispatch.

  • The RER is involved with the synthesis of proteins. They produce and process specific proteins at ribosomal sites.

  • Consists of network-like tunnels with tubules, vesicles and cisternae which is held together by the cytoskeleton of the cell.


Smooth Endoplasmic Reticulum (SME)

  • SME is more tubular then RER and forms a separate interconnecting network. (Is found evenly distributed among the Cytoplasm.)

  • SME has no ribosomes on it.

  • Smooth ER manufactures lipids and in some cases the metabolism of them and associated products.


Refrences

  • http://sln.fi.edu/qa97/biology/cells/cell5.html

  • http://library.thinkquest.org/C004535/endoplasmic_reticulum.html

  • http://www.buzzle.com/articles/rough-endoplasmic-reticulum-function.html

  • http://www.bscb.org/?url=softcell/er


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