Endoplasmic reticulum

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The Endoplasmic reticuluman is an organelle composed of an extensive network of folded membranes which perform several tasks within a cell. Notably, processing of secretory proteins, steroid synthesis, and calcium storage.[1]

The organelle can be divided into two main sections:

  • Rough endoplasmic reticulum - so called because of the ribosomes on its surface, this is where synthesis of secreted proteins occurs
  • Smooth endoplasmic reticulum - does not have ribosomes, major site of lipid metabolism and post-translational protein modifications.

See also

References

  1. Wile, Dr. Jay L. Exploring Creation With Biology. Apologia Educational Ministries, Inc. 1998
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