英语词汇“active transport”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

active transport n. Biochemistry the transport of molecules or ions across a cellular membrane against an electrochemical gradient, typically assisted by enzymes and using energy from the hydrolysis of ATP.

ΘΚΠ

the world > life > biology > substance > cell > parts of cell > [noun] > wall or membranes > transport across

active transport1937

1937 Trans. Faraday Soc. 33 912 Active transport of a substance is brought about by some kind of dynamic machinery working within living cells.

1964 G. H. Haggis et al. Introd. Molecular Biol. vi. 155 Movement against the concentration gradient or, more generally, movement of the transported molecule or ion to a state of higher thermodynamic potential energy, is termed active transport.

1989 Sci. Amer. Nov. 51/3 Concentrations of micronutrients in blood plasma are usually low; to scavenge them from the blood, the choroid plexus relies on active-transport mechanisms.

2005 A. J. Tobin & J. Dusheck Asking about Life (ed. 3) iv. 86/2 In active transport, cells use the energy of ATP to move ions across the membrane.

单词	active transport
释义	> as lemmas active transport active transport n. Biochemistry the transport of molecules or ions across a cellular membrane against an electrochemical gradient, typically assisted by enzymes and using energy from the hydrolysis of ATP. ΘΚΠ the world > life > biology > substance > cell > parts of cell > [noun] > wall or membranes > transport across active transport1937 1937 Trans. Faraday Soc. 33 912 Active transport of a substance is brought about by some kind of dynamic machinery working within living cells. 1964 G. H. Haggis et al. Introd. Molecular Biol. vi. 155 Movement against the concentration gradient or, more generally, movement of the transported molecule or ion to a state of higher thermodynamic potential energy, is termed active transport. 1989 Sci. Amer. Nov. 51/3 Concentrations of micronutrients in blood plasma are usually low; to scavenge them from the blood, the choroid plexus relies on active-transport mechanisms. 2005 A. J. Tobin & J. Dusheck Asking about Life (ed. 3) iv. 86/2 In active transport, cells use the energy of ATP to move ions across the membrane. extracted from activeadj.n. < as lemmas
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