porosome

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Exocytosis process. Cell transports particles out of the cell. Royalty Free Stock Photo

Secretory vesicles are membrane-bound organelles found in cells, particularly in glandular cells, neurons, and certain other specialized cells. They play a crucial role in the process of exocytosis, where materials enclosed within the vesicles are released from the cell into the extracellular space. Secretory vesicles store various substances synthesized by the cell, such as hormones, enzymes, neurotransmitters, or other proteins destined for secretion. These vesicles are formed by budding off from the Golgi apparatus, a cellular organelle involved in processing and sorting proteins.