What are endocytosis?

Endocytosis

Endocytosis is a process by which cells absorb molecules (such as proteins) by engulfing them. It is used by all cells of the body because most substances important to them are large polar molecules that cannot pass through the hydrophobic plasma or cell membrane. The process which is the opposite to endocytosis is exocytosis.

Read more about Endocytosis.

Some articles on endocytosis:

Cytosis - Endocytosis
... Endocytosis is when a cell absorbs molecules, such as proteins, from outside the cell by engulfing it with the cell membrane ... The two major types of endocytosis are pinocytosis and phagocytosis ... It is an example of fluid phase endocytosis and is usually a continuous process within the cell ...
Ap180
... is a protein that plays an important role in clathrin-mediated endocytosis of synaptic vesicles ... of AP180 is a powerful and specific inhibitor of clathrin-mediated endocytosis ... More information is found on endocytosis.org ...
Cell-penetrating Peptide - Mechanisms of Membrane Translocation - Endocytosis Mediated Translocation
... Endocytosis is the second mechanism liable for cellular internalization ... Endocytosis is the process of cellular ingestion by which the plasma membrane folds inward to bring substances into the cell ... The classification of cellular localization using fluorescence or by endocytosis inhibitors is the basis of most examination ...
Clathrin-mediated Endocytosis
... The major route for endocytosis in most cells, and the best-understood, is that mediated by the molecule clathrin ... coats are involved in two crucial transport steps (i) receptor-mediated and fluid-phase endocytosis from the plasma membrane to early endosome and (ii) transport from the TGN to endosomes ... In endocytosis, the clathrin coat is assembled on the cytoplasmic face of the plasma membrane, forming pits that invaginate to pinch off (scission) and ...
Ribbon Synapse - Mechanism - Endocytosis
... A high amount of endocytosis is necessary due to the large amount of exocytosis during continued neurotransmitter release in ribbon synapses ...