Vesicle: Difference between revisions
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A vesicle is a [[Plasma membrane|membrane]]-bound sac found in many [[Cell|cells]], which is formed when part of a compartment [[Plasma membrane|membrane buds]] off<ref>Alberts et al (2008), Molecular Biology of the Cell, 5th edition, New York: Garland Science</ref>. Vesicles are vital for the taking up, release and transport of [[Molecule|molecules]] within and between [[Cell|cells]]. Many cells take up [[Molecule|molecules]] via [[Receptor|receptor]]-mediated [[Endocytosis|endocytosis]], the process by which binding of a particular [[Protein|protein]] or other complex causes invagination of the [[Plasma membrane|membrane]], which eventually breaks off forming a vesicle containing the desired protein or substance<ref name="null">Berg et al (2006), Biochemistry, 6th edition, New York: W. H. Freeman</ref>. The opposite of this process is [[Exocytosis|exocytosis]], whereby a vesicle fuses to a [[ | A vesicle is a [[Plasma membrane|membrane]]-bound sac found in many [[Cell|cells]], which is formed when part of a compartment [[Plasma membrane|membrane buds]] off<ref name="null">Alberts et al (2008), Molecular Biology of the Cell, 5th edition, New York: Garland Science, pg 701</ref>. Vesicles are vital for the taking up, release and transport of [[Molecule|molecules]] within and between [[Cell|cells]]. Many cells take up [[Molecule|molecules]] via [[Receptor|receptor]]-mediated [[Endocytosis|endocytosis]], the process by which binding of a particular [[Protein|protein]] or other complex causes invagination of the [[Plasma membrane|membrane]], which eventually breaks off forming a vesicle containing the desired protein or substance<ref name="null">Berg et al (2006), Biochemistry, 6th edition, New York: W. H. Freeman, pg 346</ref>. The opposite of this process is [[Exocytosis|exocytosis]], whereby a vesicle fuses to a [[Plasma membrane|membrane]], releasing its contents<ref name="null">Berg et al (2006), Biochemistry, 6th edition, New York: W. H. Freeman, pg 346</ref>. | ||
=== <br>References<br> === | === <br>References<br> === | ||
<references /> | <references /> | ||
Revision as of 12:45, 10 January 2011
A vesicle is a membrane-bound sac found in many cells, which is formed when part of a compartment membrane buds off[1]. Vesicles are vital for the taking up, release and transport of molecules within and between cells. Many cells take up molecules via receptor-mediated endocytosis, the process by which binding of a particular protein or other complex causes invagination of the membrane, which eventually breaks off forming a vesicle containing the desired protein or substance[1]. The opposite of this process is exocytosis, whereby a vesicle fuses to a membrane, releasing its contents[1].