Vesicles are small sacs that pinch off the endoplasmic reticulum or Golgi apparatus (discussed below) and transport molecules to other parts of the cell. Smooth Endoplasmic Reticulum The smooth endoplasmic reticulum contains passages that appear to be tubular in structure. The outer surface does not contain ribosomes so it appears to be smooth. Smooth endoplasmic reticula are connected to rough endoplasmic reticula and, in most cells, the endoplasmic reticula are continuous with the nuclear envelope. The smooth endoplasmic reticula have a variety of different functions. One important function is to produce lipid compounds such as phospholipids, steroids, and fatty acids. Certain kinds of cells have smooth endoplasmic reticulum with a specialized function. The following are some examples: Smooth endoplasmic reticulum is abundant in the adrenal cortex and the testes where it produces steroid hormones . The smooth endoplasmic reticulum of
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This note was uploaded on 01/04/2012 for the course BSC BSC1005 taught by Professor Orlando,rebecca during the Fall '10 term at Broward College.