Dab tsi yog passive diffusion hauv biology?
Dab tsi yog passive diffusion hauv biology?

Video: Dab tsi yog passive diffusion hauv biology?

Video: Dab tsi yog passive diffusion hauv biology?
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Passive kev thauj mus los yog ib qho tshwm sim tshwm sim thiab tsis xav kom lub cell siv lub zog kom ua tiav qhov kev txav mus los. Hauv passive kev thauj mus los, cov khoom txav los ntawm thaj chaw siab dua mus rau thaj chaw qis dua hauv cov txheej txheem hu ua nthuav tawm.

Ntawm no, dab tsi yog txhais los ntawm passive diffusion?

Diffusion . Diffusion yog txheej txheem ntawm passive thauj nyob rau hauv uas molecules txav los ntawm ib cheeb tsam ntawm siab dua concentration mus rau ib qho ntawm cov qis concentration. Cov ntaub ntawv txav mus rau hauv lub cell lub cytosol los ntawm nthuav tawm , thiab qee cov ntaub ntawv txav los ntawm plasma membrane los ntawm nthuav tawm . Diffusion siv tsis muaj zog.

Kuj Paub, dab tsi yog active thiab passive diffusion? Active thiab passive kev thauj mus los yog ob txoj hauv kev thauj cov molecules hla lub cell membrane. Active thauj cov twj molecules los yog cov khoom tawm tsam qhov concentration gradient siv cellular zog. Passive diffusion kuj tso cai rau me me, uas tsis yog-polar molecules los yog cov khoom mus hla lub membrane.

Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog passive thauj biology?

Passive thauj yog ib qho kev txav ntawm ions thiab lwm yam atomic los yog molecular tshuaj nyob rau hauv cell membranes yam tsis xav tau lub zog input. Tsis zoo li nquag thauj , nws tsis tas yuav muaj cov tswv yim ntawm lub zog ntawm tes vim tias nws hloov pauv los ntawm kev nyiam ntawm lub cev kom loj hlob hauv entropy.

Dab tsi yog diffusion hauv biology?

Diffusion . Diffusion yog cov net passive txav ntawm hais (atoms, ions los yog molecules) los ntawm ib cheeb tsam uas lawv nyob rau hauv siab dua concentration mus rau cheeb tsam ntawm qis concentration. Nws txuas ntxiv mus kom txog thaum lub concentration ntawm cov khoom sib xws thoob plaws.

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