e/Membrane transport

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has glosseng: 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. The regulation of passage through the membrane is due to selective membrane permeability a characteristic of biological membranes which allows them to separate substances of distinct chemical nature, for instance they can be permeable to certain substances but not to others. The movements of most solutes through the membrane are mediated by membrane transport proteins which are specialized to varying degrees in the transport of specific molecules. As the diversity and physiology of the distinct cells is highly related to its capacity to attract different external elements, it is postulated that there is a group of specific transport proteins for each cell type and for every specific physiological stage;[1].
lexicalizationeng: membrane transport
instance ofc/Cellular processes
Meaning
Czech
has glossces: Membránový transport je souborné označení dějů, při němž látky různého typu překonávají barieru biologické membrány. Z hlediska mechanismu přenosu částic rozlišujeme transport: * volnou difusí * dočasnými nebo trvalými póry * usnadněnou difusí pomocí nízkomolekulárních nebo vysokomolekulárních přenašečů * mechanismem endocytózy nebo exocytózy. Z hlediska energetického rozeznáváme transport pasivní a aktivní.
lexicalizationces: Membránový transport
German
has glossdeu: Unter Membrantransport wird in der Biologie der Transport von unterschiedlichen Stoffen durch eine Biomembran verstanden. Werden dabei zugleich Teile der Membran selbst verlagert, wird dies gelegentlich als Membranfluss gesondert bezeichnet.
lexicalizationdeu: Membrantransport
Esperanto
has glossepo: Sub membrantransporto en la biologio oni komprenas la transporton de diversaj substancoj tra biomembrano. Se samtempe partoj de la membrano mem translokiĝas, oni foje ankaŭ parolas aparte pri membranfluo.
lexicalizationepo: Membrantransporto
French
has glossfra: Les transporteurs membranaires sont des protéines intrinsèques à la membrane cellulaire lipidique qui permettent le passage des métabolites. Ils ont deux propriétés principales : * ils sont sélectifs. * ils sont contrôlés de façon très fine.
lexicalizationfra: Transporteur membranaire
Italian
has glossita: Con il termine trasporto di membrana ci si riferisce a diversi processi attraverso i quali la cellula è in grado di permettere l'attraversamento delle membrane biologiche alle molecole che non sono in grado di diffondervi autonomamente.
lexicalizationita: Trasporto di membrana
Russian
has glossrus: Мембранный транспорт- транспорт веществ сквозь клеточную мембрану в клетку или из клетки, осуществляемый с помощью различных механизмов - простой диффузии, облегченной диффузии и активного транспорта.
lexicalizationrus: Мембранный транспорт
Castilian
has glossspa: En biología celular se denomina transporte de membrana al conjunto de mecanismos que regulan el paso de solutos, como iones y pequeñas moléculas, a través de membranas plasmáticas, esto es, bicapas lipídicas que poseen proteínas embebidas en ellas. Dicha propiedad se debe a la selectividad de membrana, una característica de las membranas celulares que las faculta como agentes de separación específica de sustancias de distinta índole química; es decir, la posibilidad de permitir la permeabilidad de ciertas sustancias pero no de otras.
lexicalizationspa: transporte de membrana
Serbian
has glosssrp: Мембрански транспорт представља размену метерије између интрацелуларне и екстрацелуларне средине кроз ћелијску мембрану.
lexicalizationsrp: Мембрански транспорт
Media
media:imgCell membrane scheme.png
media:imgCellMembraneDrawing.jpg
media:imgDiffusion.jpg
media:imgMembrantransport.png
media:imgOsmose.jpg
media:imgPotassium channels shut and open.png
media:imgPotassiumIonChannel.png
media:imgReazione ATP.gif
media:imgScheme facilitated diffusion in cell membrane-en.svg
media:imgScheme facilitated diffusion in cell membrane-es.svg
media:imgSodium Pump.svg
media:imgTransportProteine.png

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