Endocytosis & Exocytosis
The movement of macromolecules such as proteins or polysaccharides into or out of the cell is called bulk transport , There are two types of bulk transport, exocytosis and endocytosis, and both require the expenditure of energy (ATP).
In exocytosis , materials are exported out of the cell via secretory vesicles. In this process, the Golgi complex packages macromolecules into transport vesicles that travel to and fuse with the plasma membrane. Endocytosis, on the other hand, is the process by which materials move into the cell. There are three types of endocytosis: phagocytosis,pinocytosis, and receptor-mediated endocytosis. |
VideoLearn how larger compounds are transported in vesicles across a cell membrane.
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Study resources |
Comparison chart
Pictures Cited: http://www.proteinatlas.org/images_dictionary/plasma_membrane__1__18530__1_blue_red_green.jpg
http://iws.collin.edu/biopage/faculty/mcculloch/1408/notes/Membranes/images/exocytosis.jpg
http://www.ck12.org/flx/show/THUMB_POSTCARD/image/201412291419891912537331_1426dfe77c1b3b281f3df973f267dc53-201412291419895465182478.png
http://cnx.org/content/m44419/latest/Figure_05_04_04.jpg
http://3.bp.blogspot.com/-VvtyNxFwc-4/T9HLcOZ5JTI/AAAAAAAAAnc/0A90NXabo6g/s1600/receptor+mediated+endocytosis.jpg.png
http://www.biology.lifeeasy.org/1772/what-is-the-difference-between-endocytosis-and-exocytosis
http://media-2.web.britannica.com/eb-media/15/116815-004-05FCECA5.jpg
http://iws.collin.edu/biopage/faculty/mcculloch/1408/notes/Membranes/images/exocytosis.jpg
http://www.ck12.org/flx/show/THUMB_POSTCARD/image/201412291419891912537331_1426dfe77c1b3b281f3df973f267dc53-201412291419895465182478.png
http://cnx.org/content/m44419/latest/Figure_05_04_04.jpg
http://3.bp.blogspot.com/-VvtyNxFwc-4/T9HLcOZ5JTI/AAAAAAAAAnc/0A90NXabo6g/s1600/receptor+mediated+endocytosis.jpg.png
http://www.biology.lifeeasy.org/1772/what-is-the-difference-between-endocytosis-and-exocytosis
http://media-2.web.britannica.com/eb-media/15/116815-004-05FCECA5.jpg