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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. Makes protein and lipid components. Consists of a smooth ER and a rough ER. Rough Endoplasmic Reticulum Gets it’s name from its pebbly surface appearance. Can only be seen under an electron microscope. The RER is dotted with ribosomes. The RER is involved with protein production, protein folding, quality control and dispatch. 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. 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. 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.