Endocytosis
In endocytosis, the cell engulfs some of its extracellular fluid (ECF) including material dissolved or suspended in it.
There are two types of endocytosis, called phagocytosis, which literally means cell-eating, and pinocytosis, which literally means cell-drinking.
Chapter 14
Endocytosis and retrograde axonal traffic in motor neurons
Katrin Deinhardt and Giampietro Schiavo1 ...
endocytosis The incorporation of materials from outside the cell by the formation of vesicles in the plasma membrane. The vesicles surround the material so the cell can engulf it.
Endocytosis (EN-doe-sye-TOE-sis) A process cells use to engulf particles or liquid from their surroundings. It occurs when the cell surface membrane puckers inward, encircling the material, then pinches off, producing a vesicle inside the cell.
Endocytosis and Exocytosis
These processes are used for materials that are too big to pass through the plasma membrane via protein transport.
Endocytosis ...
Endocytosis The process of internalization of extracellular material by invagination and budding of the cell membrane.
Endocytosis is the case when a molecule causes the cell membrane to bulge inward, forming a vesicle. Phagocytosis is the type of endocytosis where an entire cell is engulfed. Pinocytosis is when the external fluid is engulfed.
endocytosis Ingestion of particulate matter or fluid by phagocytosis or pinocytosis; that is, bringing material into a cell by invagination of its surface membrane and then pinching off the invaginated portion of a vacuole.
So endocytosis is what cells do to clean up after they've performed exocytosis. When a vesicle fuses with the plasma membrane, the membrane that's part of the vesicle gets to be part of the plasma membrane.
Endosomes and Endocytosis
Endosomes are membrane-bound vesicles, formed via a complex family of processes collectively known as endocytosis, and found in the cytoplasm of virtually every animal cell.
Receptor-mediated endocytosis can also be "abused":
Some viruses, for example, the Semliki forest virus, enter the cell through this mechanism.
Cholera, diphtheria, anthrax, tetanus, botulinum, and other bacterial toxins enter the cell this way.
By endocytosis or phagocytosis, these antigens are taken into the antigen-presenting cells (APCs) and processed into fragments.
It is one type of endocytosis. Endocytosis happens when a cell goes out and takes in something. Phagocytosis is the situation when it gets a solid. Pinocytosis is the act of grabbing some liquid. The whole cell works during the process.
(py-noh-sy-toh-sis) [Gk. pinein, to drink + kytos, vessel]
A type of endocytosis in which the cell ingests extracellular fluid and its dissolved solutes.
pith ...
phagocytosis
A type of endocytosis involving large, particulate substances.
Material can come into the cell by the reverse of this process, called endocytosis. Microscopic portions of the cell membrane are pinched off and taken into the cell often to merge with lysosomes where the contents are degraded.
of Smo N-terminal antibodies by live cells resulted in the labeling of structures indistinguishable from those labeled by C-terminal anti-Flag in fixed, permeabilized cells (Figure 2B), suggesting that intracellular Smo is derived by endocytosis ...
 See also: Cells, Protein, Membrane, Cell, Proteins
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