active transport

См. также в других словарях:

• active transport — Often defined as transport up an electrochemical gradient. More precisely defined as unidirectional or vectorial transport produced within a membrane bound protein complex by coupling an energy yielding process to a tranport process. In primary… …   Dictionary of molecular biology



• Active transport — This article is about transport in cellular biology. For human transport systems, see active transportation. The action of the sodium potassium pump is an example of primary active transport. Active transport is the movement of a substance… …   Wikipedia

• active transport — The transport of solute molecules across a membrane against an electrochemical gradient; it requires a carrier protein and the input of energy …   Dictionary of microbiology

• active transport — noun Date: 1963 the movement of a chemical substance by the expenditure of energy against a gradient in concentration or in electrical potential across a plasma membrane …   New Collegiate Dictionary

• active transport — The transportation or movement of substances through differentially permeable cell membranes against a concentration or electrical gradient with the expenditure of energy …   Dictionary of invertebrate zoology

• active transport — перенос вещества против градиента химического потенциала …   Англо-русский металлургический словарь

• active transport — the movement of ions or molecules across a cellular membrane from a lower to a higher concentration, requiring the consumption of energy. [1960 65] * * * …   Universalium

• active transport — 1) Металлургия: перенос вещества против градиента химического потенциала 2) Иммунология: активный перенос, активный транспорт (молекул через клеточную мембрану) 3) Биохимия: активный транспорт (ионов через клеточную мембрану) 4) Макаров: активное …   Универсальный англо-русский словарь

• Secondary active transport — In secondary active transport, in contrast to primary active transport, there is no direct coupling of ATP; instead, the electrochemical potential difference created by pumping ions out of the cell is used. [GeorgiaPhysiology|7/7ch05/7ch05p12]… …   Wikipedia

• Primary active transport — directly uses energy to transport molecules across a membrane. [GeorgiaPhysiology|7/7ch05/7ch05p11] Most of the enzymes that perform this type of transport are transmembrane ATPases. A primary ATPase universal to all cellular life is the sodium… …   Wikipedia