Cell membrane - Wikipedia, the free encyclopedia
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The cell membrane (also called the plasma membrane or plasmalemma ) is the biological membrane separating the interior of a cell from the outside environment. The cell membrane surrounds all cel...
en.wikipedia.org/wiki/Cell_membrane
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The cell membrane is probably the most important organelle in the cell. It holds the cell together and keeps everything intact. It also regulates homeostasis which will be discussed later in this section. Cell membrane is mobile and moves along "grooves" which are set paths the membrane follow.
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www.stemnet.nf.ca/~dpower/cell/mbrane.htm
www.stemnet.nf.ca/~dpower/cell/mbrane.htm
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We have been talking about cells being a unit of organization in biology. Let's look at the cell membrane and see how that membrane keeps all of the pieces inside. When you think about a membrane, imagine it is like a big plastic bag with some tiny holes.
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www.biology4kids.com/files/cell_membrane.html
www.biology4kids.com/files/cell_membrane.html
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History: Up until now you knew that the function of the cell membrane was to separate the inside of the cell from its outside. In some pictures you have seen, the cell membrane may have looked like this:
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www.usd.edu/~bgoodman/Membrane.htm
www.usd.edu/~bgoodman/Membrane.htm
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In addition, all eukaryotic cells contain elaborate systems of internal membranes which set up various membrane-enclosed compartments within the cell.
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users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/CellM...
users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/CellMembranes.html
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The membrane and cytosol of plant and animal cells. ... Cell Membrane: Every cell is enclosed in a membrane. The membrane is a double layer of lipids (lipid bilayer) but is made quite complex by the presence of numerous proteins that are important to cell activity. These proteins include receptors, pores, and enzymes.
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www.cellsalive.com/cells/membrane.htm
www.cellsalive.com/cells/membrane.htm
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Water and Solute Movement | The Cell Membrane | Cells and Diffusion | Active and Passive Transport | Carrier-assisted Transport ... The cell membrane functions as a semi-permeable barrier, allowing a very few molecules across it while fencing the majority of organically produced chemicals inside the cell.
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www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBooktrans...
www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBooktransp.html
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The Cell Membrane | Back to Top ... The cell membrane functions as a semi-permeable barrier, allowing a very few molecules across it while fencing the majority of organically produced chemicals inside the cell.
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www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookCELL2...
www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookCELL2.html
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