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Golgi Apparatus



  • Located near the outer side of the endoplasmic reticulum.

Structure

  • Stack of thin, flat and slightly curved sacs.

  • Sacs:

    • Thin in the middle and dilated at the edges.

    • Not connected to each other.


Function

Process and sort newly synthesized proteins.


Proteins are synthesized on rough endoplasmic reticulum

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Packed in carrier vesicles

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Reach the innermost sac of the Golgi apparatus

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Pass through each sac one by one and are processed during this

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Reach the outermost sac

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Seggregated according to the destination

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  • Secretory proteins: Packed in secretory vesicles ⟶ Stored ⟶ Upon appropriate signal ⟶ Secreted by the process of exocytosis.

  • Proteins to be sent to intracellular organelles: Packed in separate vesicles ⟶ go to the respective organelle.

 

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