unit membrane
noun Date: 1959 the limiting membrane of cells and various organelles viewed formerly as a 3-layered structure with an inner lipid layer and two outer protein layers and currently as a fluid phospholipid bilayer with intercalating proteins

New Collegiate Dictionary. 2001.

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  • unit membrane — n the limiting membrane of cells and various organelles viewed formerly as a 3 layered structure with an inner lipid layer and two outer protein layers and currently as a fluid phospholipid bilayer with intercalated proteins * * * the trilaminar… …   Medical dictionary

  • unit membrane — The three ply, approximately 7nm wide membrane structure found in all cells, composed of a fluid lipid bilayer with intercalated proteins. The unit membrane theory carries with it the presumption that all biological membranes have basically the… …   Dictionary of molecular biology

  • unit membrane — noun : a 3 layered membrane that consists of an inner lipid layer surrounded by a protein layer on each side …   Useful english dictionary

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  • Membrane curvature — is the geometrical measure or characterization of the curvature of membranes. The membranes can be naturally occurring or man made (synthetic). An example of naturally occurring membrane is the lipid bilayer of cells, also known as cellular… …   Wikipedia

  • Membrane operation — or membrane process is considered like a unit operation in chemical engineering. In chemistry membrane operations utilize artificial membranes to separate mixtures. According to driving force of the operation it is possible to distinguish:… …   Wikipedia

  • Membrane technology — The membrane technology covers all process engineering measures for the transport of substances between two fractions with the help of permeable membranes. That means in general mechanical separation process for separation of gaseous or liquid… …   Wikipedia

  • Membrane potential — Differences in concentration of ions on opposite sides of a cellular membrane lead to a voltage called the membrane potential. Many ions have a concentration gradient across the membrane, including potassium (K+), which is at a high inside and a… …   Wikipedia

  • Membrane reactor — A membrane reactor is a piece of chemical equipment that combines a catalyst filled reaction chamber with a membrane to add reactants or remove products of the reaction. Chemical reactors making use of membranes are usually referred to as… …   Wikipedia

  • membrane capacitance — The electrical capacitance of a membrane. Plasma membranes are excellent insulators and dielectrics: capacitance is the measure of the quantity of charge that must be moved across unit area of the membrane to produce unit change in membrane… …   Dictionary of molecular biology

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