Exocytosis is the durable process by which a cell directs the contents of secretory vesicles out of the cell membrane and into the extracellular space. These membrane-bound vesicles contain soluble proteins to be secreted to the extracellular environment, as well as membrane proteins and lipids that are sent to become components of the cell membrane.Video shows the path of proteins exiting the Golgi apparatus on the way to the cell surface.
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