Definition of Active transport

1. Noun. Transport of a substance (as a protein or drug) across a cell membrane against the concentration gradient; requires an expenditure of energy.

Category relationships: Drug
Generic synonyms: Transport

Medical Definition of Active transport

1. Transport of ions, nutrients or other molecules into a cell against a concentration gradient, this requires the expenditure of energy through ATP hydrolysis. (06 May 1997)

Lexicographical Neighbors of Active Transport

active methyl
active movement
active mutant
active placebo
active power
active powers
active principle
active prophylaxis
active psychoanalysis
active pyruvate
active repressor
active site
active splint
active succinate
active sulfate
active transport (current term)
active treatment
active trust
active vasoconstriction
active vasodilation
active vocabulary
active voice
active volcano

Literary usage of Active transport

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the Society for Experimental Biology and Medicine (1903)
"This is strong evidence against binding or active transport of nicotine as well as evidence against the permeability of the erythrocyte membrane to the ..."

2. Mineral Tolerance of Animals by National Research Council (U. S.) (2005)
"REGULATION AND METABOLISM Absorption and Metabolism Both active transport and passive diffusion are suggested as the mechanisms of phosphate absorption in ..."

3. Crossing Over: The Basics of Evolution : Workbook for Teachers by Edith Dempster (2006)
"We call the process whereby a cell membrane helps molecules to move into or out of the cell active transport. Diffuse (say dife-fuse) means that a substance ..."

4. Communicating Environmentally Sustainable Transport: The Role of Soft Measures by OECD Staff, SourceOECD (Online service) (2004)
"active transport is good for you. but there are still the indirect effects emanating from pollution, which damages health and causes problems relating to ..."

5. Tissue Culture: Plants : A Bibliography, January 1991-April 1993. by Henry Gilbert (1994)
"Language: English Descriptors: Nicotiana tabacum; Cell membranes; Potassium; Ion transport; active transport; Cell suspensions; Protoplasts; ..."

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