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Rough Endoplasmic Reticulum

Rough Endoplasmic Reticulum . By Valeria Lemus Biology 1125-001. Endoplasmic Reticulum (ER). Endoplasmic means “with in the cytoplasm” and reticulum is Latin for “a little net”. The endoplasmic reticulum is a network of folded membranes that form channels.

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Rough Endoplasmic Reticulum

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  1. Rough Endoplasmic Reticulum By Valeria Lemus Biology 1125-001

  2. Endoplasmic Reticulum(ER) • Endoplasmic means “with in the cytoplasm” and reticulum is Latin for “a little net”. • The endoplasmic reticulum is a network of folded membranes that form channels. • Makes protein and lipid components. • Consists of a smooth ER and a rough ER.

  3. Rough Endoplasmic Reticulum • Gets it’s name from its pebbly surface appearance. • Can only be seen under an electron microscope.

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

  5. Functions: • They produce and process specific proteins • Consists of network-like tunnels with tubules, vesicles which is composed together by the cytoskeleton of the cell.

  6. Process: • The ribosomes are attached to the membrane of the ER. • As the ribosome builds the amino acid chain, the chain is pushed into the ER. • When the protein is complete, the rough ER pinches off a vesicle. • That vesicle, a small membrane bubble, can move to the cell membrane or the Golgi apparatus.

  7. References • "Endoplasmic Reticulum - Wrapping It Up." Biology4Kids.com: Cell Structure: Endoplasmic Reticulum. N.p., n.d. Web. 17 Mar. 2014. • "Molecular Expressions Cell Biology: Endoplasmic Reticulum." Molecular Expressions Cell Biology: Endoplasmic Reticulum. N.p., n.d. Web. 17 Mar. 2014. • Mason, Kenneth A., Jonathan B. Losos, Susan R. Singer, Peter H. Raven, and George B. Johnson. Biology. N.p.: n.p., n.d. Print.

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