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Golgi Apparatus . Cell biology. The name comes from Italian anatomist Camillo Golgi, who identified it in 1898. . Eukaryotic Cell (2nd Major Kind of Cell) Cells that have a membrane around their nucleus. Example – Plant and Animal Cells Eukaryotic

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golgi apparatus

Golgi Apparatus

Cell biology

slide3

Eukaryotic Cell (2nd Major Kind of Cell) Cells that have a membrane around their nucleus.

Example – Plant and Animal Cells Eukaryotic

Cells usually are 10 times larger than Prokaryote cells.

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The primary function of the Golgi apparatus is to process proteins targeted to the plasma membrane, lysosomes or endosomes, and those that will be formed from the cell, and sort them within vesicles.
  • Thus, it functions as a central delivery system for the cell. It is part of the endomembrane system.
slide5
The Golgi apparatus consists of stacks of sacs with vesicles pinching off from the edges of the sacs.
slide6
Golgi apparatus (sometime called the Golgi body)
  • Golgi apparatus consists of sacs (with a single membrane) which are stacked like pancakes.
  • Closely associated with the edges of the flattened sacs you will see vesicles which have pinched off from the Golgi.
slide8
Once the proteins are produced by the rough E.R. they pass into the sack like cisternae that are the main part of the golgi body. These proteins are then squeezed off into the little blebs which drift off into the cytoplasm.
function
Function
  • First modification of lipids and proteins
  • Storage and packaging of materials that will be exported from the cell.
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The Golgi apparatus is often called the "shipping department" of the cell.
  • The vesicles that pinch off from the Golgi apparatus move to the cell membrane and the material in the vesicle is released to the outside of the cell.
  • Some of these pinched off vesicles also become lysosomes
  • Along with protein modification, Golgi apparatus is involved in the transport of lipids around the cell,