transport


transport
v. /trans pawrt", -pohrt"/; n. /trans"pawrt, -pohrt/, v.t.
1. to carry, move, or convey from one place to another.
2. to carry away by strong emotion; enrapture.
3. to send into banishment, esp. to a penal colony.
n.
4. the act of transporting or conveying; conveyance.
5. a means of transporting or conveying, as a truck or bus.
6. a ship or plane employed for transporting soldiers, military stores, etc.
7. an airplane carrying freight or passengers as part of a transportation system.
8. a system of public travel.
9. transportation (def. 6).
10. strong emotion; ecstatic joy, bliss, etc.
11. a convict sent into banishment, esp. to a penal colony: The country had been colonized largely by transports.
12. Recording. Also called tape transport. a mechanism that moves magnetic tape past the head in a tape deck or tape recorder.
[1325-75; ME transporten (v.) < L transportare to carry across. See TRANS-, PORT5]
Syn. 1. See carry. 10. rapture, happiness. See ecstasy.

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In biochemistry, the movement of molecules and particles across a cell membrane, a selective barrier that allows some substances (fat-soluble molecules and some small molecules) to pass and blocks others (ions and large, water-soluble molecules).

Transport of these vital substances occurs via several systems. Open channels allow diffusion (passive transport) of ions directly into cells; facilitators use a chemical change to help substances diffuse past the membrane; "pumps" force dilute substances through even when their concentration on the other side is higher (a form of active transport). Primary active transport is powered directly by energy released in cell metabolism (see ATP, adenosine triphosphate). In secondary active transport, a molecule is linked to a different molecule that carries it across the membrane (cotransport) or is exchanged for a different molecule crossing in the other direction (countertransport). The membrane itself opens and closes to let larger particles in or out.

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Universalium. 2010.

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  • transport — [ trɑ̃spɔr ] n. m. • 1312; de transporter I ♦ 1 ♦ Dr. Cession (d un droit, d une créance). « L endossement opère le transport » ( CODE COMMERCIAL ). 2 ♦ (1538) Fait de porter pour faire parvenir en un autre lieu; manière de déplacer ou de faire… …   Encyclopédie Universelle

  • Transport — or transportation is the movement of people and goods from one place to another. The term is derived from the Latin trans ( across ) and portare ( to carry ). Industries which have the business of providing transport equipment, transport services …   Wikipedia

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  • transport — Transport. s. m. v. Action par laquelle on transporte une chose d un lieu en un autre. Le transport de l argent, des pierreries hors du Royaume est deffendu. le transport de ses meubles luy a cousté beaucoup. Transport. Cession juridique d un… …   Dictionnaire de l'Académie française

  • transport — TRANSPÓRT, transporturi, s.n. 1. Faptul de a transporta. ♦ (La pl.) Ramură a economiei naţionale cuprinzând totalitatea mijloacelor rutiere, aeriene şi navale care asigură circulaţia bunurilor şi a persoanelor. 2. Totalitatea bunurilor sau a… …   Dicționar Român

  • transport — {{/stl 13}}{{stl 8}}rz. mnż I, D. u, Mc. transportrcie {{/stl 8}}{{stl 20}} {{/stl 20}}{{stl 12}}1. {{/stl 12}}{{stl 7}} przemieszczanie ludzi i ładunków na pewną odległość z zastosowaniem środków lokomocji : {{/stl 7}}{{stl 10}}Transport lądowy …   Langenscheidt Polski wyjaśnień

  • Transport — Trans port, n. [F. See {Transport}, v.] 1. Transportation; carriage; conveyance. [1913 Webster] The Romans . . . stipulated with the Carthaginians to furnish them with ships for transport and war. Arbuthnot. [1913 Webster] 2. A vessel employed… …   The Collaborative International Dictionary of English

  • transport — I verb banish, bear, bring, carry, cart, conduct, consign, convey, deliver, deport, dispatch, drive out, exile, expel, extradite, fetch, imprison, move, ostracize, remove, send, ship, take, tote, transfer, transmit, transmittere, transplant,… …   Law dictionary

  • transport — [n1] move, transfer carriage, carrier, carrying, carting, conveyance, conveying, conveyor, freightage, hauling, lift, movement, mover, moving, passage, removal, shipment, shipping, transference, transferring, transit, transportation, transporting …   New thesaurus

  • Transport F.C. — Transport F.C. were a football club in Ireland who played in the Football League of Ireland for fourteen seasons from 1948/49 to 1961/62.During their time in the League of Ireland, Transport played their home matches for the first three seasons… …   Wikipedia

  • Transport — (lat. trans portare ‚(hin)überbringen, tragen‘) steht für: einen Teil des Verkehrs, bei dem Personen, Güter oder Daten den Raum zwischen zwei Orten mit Verkehrsmitteln überbrücken, siehe Verkehr in der Wirtschaftswissenschaft das Verbringen von… …   Deutsch Wikipedia


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