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In cells, the "plasma" or "cell" membrane is a sheetlike structure that surrounds cells, contains their inner contents, and regulates the movement of materials in and out of the cell. At the tissue level, membranes (tissues usually composed of cells) also serve to surround and regulate material transport, but do so at a larger level.
출처: www.cs.uu.nl/people/ronnie/local/genome/m.html
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(cell membrane; phospholipid bilayer) A planar structure surrounding cells and organelles within eukaryotic cells (eg membranes of cell nucleus of mitochondrion) separating aqueous compartments which carry out different metabolic processes. Cell membranes are electrical insulators but permeable to hydrophobic molecules such as steroidal hormones and small gases (carbon dioxide, molecular oxygen, nitric oxide). ...
출처: www.whatislife.com/glossary.htm
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| membrane |
The surface of a cell is a cell membrane. Many of the internal organelles of the cell are themselves surrounded by membranes which are very similar to the outer surface.
출처: freespace.virgin.net/john.hewitt1/pg_gloss.htm
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A thin, pliable sheet or layer. Biological membranes consist of a double layer of lipids ?organic molecules that are not soluble in water ?and associated proteins. Biological membranes are selectively permeable ?not all molecules can pass through the membrane. For more information see Structure of plasma membranes (British Broadcasting Corporation, UK) and Cell membranes (Kimball's Biology Pages, USA).
출처: www.science.org.au/nova/077/077glo.htm
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| membrane |
A thin barrier that allows some compounds or liquids to pass through, and troubles others. It is a semi-permeable skin of which the pass-through is determined by size or special nature of the particles. Membranes are commonly used to separate substances.
출처: www.1st-water-filters.com/water-filtration-glossar...
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