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 Endocytosis, DYK Fact #213
Posted: 09:22 Monday 23 April 2007

The Enlightenment

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Last night, before going to bed, I watched a biology programme I had videoed from the BBC Learning Zone a long time ago. It was a programme about endocytosis. Yearning.gif

Did you know? The membrane of a cell is littered with proteins that allow the passage of small particles into or out of the cell, but larger particles have to enter the cell by endocytosis. This involves the cell membrane wrapping around a particle, forming a vesicle which is “pinched off” (I believe that is the technical term tongue.gif) from the membrane so that the particle is completely enclosed within the cytoplasm. Of course, only particles that the cell recognizes as “friendly” are allowed endocytotic entry into it. Unfortunately, some viruses – such as the Semliki Forest virus – can fool the cell into thinking they are “friends” and gain entry into it by endocytosis. Once inside the cell, the such a virus will embark on its destructive pathway, replicating and eventually killing the host cell to release more viruses.

Posted: 13:20 Monday 23 April 2007

Beyond Infinity

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Did you know? Phagocytosis and pinocytosis are forms of endocytosis.

Posted: 11:50 Sunday 01 March 2015


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Did you know? The opposite of endocytosis is exocytosis – whereby material is discharged from a cell.

I have just read about phagocytosis and pinocytosis in Section 4.4, MOVEMENT IN AND OUT OF CELLS, of Chapter 4, “Cellular Organization”, of Part I, LEVELS OF ORGANIZATION, of Understanding Biology for Advanced Level by Glenn Toole and Susan Toole.

Bassaricyon neblina
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