Updated 05-May-2020.
Mondo shtuff from around the internet, all about EXOCYTOSIS!
My botty best at summarizing from Wikipedia: exocytosis is a form of active transport and bulk transport . a cell secretes molecules out of the cell by secreting them through an energy-dependent process . most chemical substances important to cells are large neurotransmitters are typically released from synaptic vesicles into the cleft via exocytosis . they can also be released via reverse transport through membrane transport proteins . cells can insert membrane proteins, vesicular exocytosis in prokaryote gram negative bacteria is a third mechanism . it is the latest finding in eukaryotic cell phenomenon . the periplasm is pin Golgi apparatus does not require ATP to transport proteins . vesicles come into contact with tethering factors that can restrain them . interactions likely to be involved in concentrating synaptic ve Tethered vesicles are also involved in regular cell’s transcription processes . in other cell types, whose secretion is constitutive, there is no priming . the merging of donor and acceptor substances within the vesicle are released into the exterior . this might be waste products or toxins, or signaling molecules like hormones or neurotransmitters . the side of the protein that was facing the inside of some synaptic vesicles are recycled without a full fusion into the membrane (kiss-and-run fusion) others require a complete reformation from the membrane by a specialized complex of proteins