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Bulk endocytosis refers to a form of endocytosis of synaptic vesicles at nerve terminals. In bulk endocytosis, compared to clathrin-mediated endocytosis , a larger area of presynaptic plasma membrane is internalised as cisternae or endosomes from which multiple synaptic vesicles can subsequently bud off.
Pinocytosis. In cellular biology, pinocytosis, otherwise known as fluid endocytosis and bulk-phase pinocytosis, is a mode of endocytosis in which small molecules dissolved in extracellular fluid are brought into the cell through an invagination of the cell membrane, resulting in their containment within a small vesicle inside the cell.
Endocytosis is a cellular process in which substances are brought into the cell. The material to be internalized is surrounded by an area of cell membrane, which then buds off inside the cell to form a vesicle containing the ingested materials. Endocytosis includes pinocytosis (cell drinking) and phagocytosis (cell eating). It is a form of ...
Receptor-mediated endocytosis (RME), also called clathrin-mediated endocytosis, is a process by which cells absorb metabolites, hormones, proteins – and in some cases viruses – by the inward budding of the plasma membrane (invagination).
It is an example of fluid phase endocytosis and is usually a continuous process within the cell. The particles are absorbed through the use of clathrin -coated pits. These clathrin-coated pits are short lived and serve only to form a vesicle for transfer of particles to the lysosome.
Apart from endocytosis, some carriers are able to directly merge with the plasma membrane through fusion. Fusion events in biology include vesicle fusion, cell–cell fusion and cell–virus fusion. In these cases, juxtaposed membranes are pulled into close contact by specific protein–protein interactions and interfacial water is excluded to ...
Intermittent fasting has been shown to disrupt this cycle, specifically by affecting the resting phase to the growth phase. This disruption leads to slower or reduced hair growth in some instances ...
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