membrane permeability

См. также в других словарях:

• Membrane transport — In cellular biology the term membrane transport refers to the collection of mechanisms that regulate the passage of solutes such as ions and small molecules through biological membranes namely lipid bilayers that contain proteins embedded in them …   Wikipedia

• Permeability — Permeability, permeable and semipermeable have several meanings:*Permeability (electromagnetism), the degree of magnetization of a material in response to a magnetic field *Permeability (earth sciences), a measure of the ability of a material… …   Wikipedia

• Membrane cellulaire — Membrane (biologie) Pour les articles homonymes, voir Membrane. Fig 1. Schéma d une cellule et de ses membranes; 2. Membrane nucléaire; 4. Vésicule; 5. Réticulum …   Wikipédia en Français

• Membrane cytoplasmique — Membrane (biologie) Pour les articles homonymes, voir Membrane. Fig 1. Schéma d une cellule et de ses membranes; 2. Membrane nucléaire; 4. Vésicule; 5. Réticulum …   Wikipédia en Français

• permeability — [pʉr΄mē ə bil′ə tē] n. 1. the state or quality of being permeable 2. Physics a) the measure of the ease with which a magnetic field can establish magnetic induction in a particular material b) the rate of diffusion of a fluid through a porous… …   English World dictionary

• 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 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 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 (biologie) — Pour les articles homonymes, voir Membrane. Fig 1. Schéma d une cellule et de ses membranes; 2. Membrane nucléaire; 4. Vésicule; 5. Réticulum endoplasmique rugueux; 6. Appareil de Golgi; 8. Rétic …   Wikipédia en Français

• membrane — 1. A thin sheet or layer of pliable tissue, serving as a covering or envelope of a part, as the lining of a cavity, as a partition or septum, or to connect two structures. SYN: membrana [TA]. 2. SYN: biomembrane. [L. membrana, a skin or m …   Medical dictionary

• Mitochondrial permeability transition pore — The Mitochondrial Permeability Transition, or MPT, is defined as an increase in the permeability of the mitochondrial membranes to molecules of less than 1500 Daltons in molecular weight. MPT results from the opening of a mitochondrial… …   Wikipedia