Dictionary » P » Plasma membrane

Plasma membrane



The cell’s outer membrane made up of a two layers of phospholipids with embedded proteins. It separates the contents of the cell from its outside environment, and it regulates what enters and exits the cell.


In animals the plasma membrane is the outermost covering of the cell whereas in plants, fungi, and some bacteria it is located beneath the [[cell wall].

Word origin: plasma: from Greek, from plassein, to mold.

Synonym: cell membrane, plasmalemma.
See also: fluid mosaic model.

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Re: Any ideas for vaccine development or anti-viral drugs???

... Suppl 2:S264-70. Budding of Ebola virus (EBOV) particles from the plasma membrane of infected cells requires viral and host proteins. EBOV virus matrix protein VP40 ...

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by jonmoulton
Mon Sep 15, 2014 3:04 pm
Forum: Cell Biology
Topic: Any ideas for vaccine development or anti-viral drugs???
Replies: 2
Views: 12728

Multicellular prokaryote

... makes perfect sense. Here, another question arises. Does absence of endomembrane system have to mean that it can't be multicellular?? Since prokaryotes have lot of unevenings in their plasma membrane(invaginations and outgrowths)and because of their small size, they ...

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by Sumanth001
Sat Nov 30, 2013 5:08 pm
Forum: Microbiology
Topic: Multicellular prokaryote
Replies: 27
Views: 41495

Intracellular membrane potential of cell and axon

In looking at simulations of resting membrane changes to a neuron in low Na+ ECF solution, I see that the membrane potential ... the case? The cell body and axon are part of the same neuron and share the same plasma membrane ... and therefore, the intracellular readings should always be the ...

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by ayong1970
Fri Sep 07, 2012 6:43 pm
Forum: Physiology
Topic: Intracellular membrane potential of cell and axon
Replies: 1
Views: 7693

Re: Can you explain the Ras recruitment system?

... which interacts with a certain switch which is already fused to the plasma membrane. My questions are: 1) is the cdc25-2 yRAS mutant already attached to the plasma membrane, ...

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by janapix
Mon Jun 11, 2012 3:33 am
Forum: Molecular Biology
Topic: Can you explain the Ras recruitment system?
Replies: 1
Views: 2933

caveolae and caveolin1

... type of lipid raft, are small (50–100 nanometer) invaginations of the plasma membrane in many vertebrate cell types, especially in endothelial cells and adipocytes. have ...

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by taruntbiotech
Mon May 14, 2012 5:10 pm
Forum: Cell Biology
Topic: caveolae and caveolin1
Replies: 1
Views: 4366
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