Video: Vim li cas cov hauv qab no cuam tshuam rau tus nqi diffusion?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Sib tham vim li cas nram qab no cuam tshuam tus nqi ntawm diffusion : molecular loj, qhov kub thiab txias, kev daws teeb meem, thiab qhov kev ncua deb uas yuav tsum tau mus. Heavy molecules txav qeeb dua li qhov sib dua. Lub denser ib qho kev daws teeb meem yog , qhov nyuaj nws yog rau molecules txav los ntawm nws, ua rau nthuav tawm kom qeeb vim kev sib txhuam.
Ntawm no, dab tsi cuam tshuam rau tus nqi diffusion?
Ob peb yam cuam tshuam rau tus nqi diffusion ntawm ib tug solute nrog rau qhov loj ntawm lub solute, qhov kub thiab txias ntawm ib puag ncig, qhov hnyav hnyav, thiab qhov kev ncua deb mus.
Ib sab saum toj no, dab tsi yog tsib yam uas cuam tshuam rau tus nqi diffusion? Tus nqi ntawm diffusion yog cuam tshuam los ntawm concentration gradient cov ntaub so ntswg permeability, kub , thiab siab.
Ntawm no, dab tsi tsis cuam tshuam rau tus nqi diffusion?
Ntau yam ua tau cuam tshuam tus nqi ntawm diffusion , suav nrog, tab sis tsis yog txwv rau, concentration gradient, qhov loj ntawm cov khoom uas yog diffusing, thiab qhov kub ntawm qhov system. Hauv kev ua neej nyob, nthuav tawm Cov tshuaj nyob rau hauv thiab tawm ntawm lub hlwb yog kho los ntawm plasma membrane.
Tus nqi ntawm ib lub molecule cuam tshuam li cas ntawm tus nqi diffusion?
Them nqi (+/-) Ions los yog molecules nrog a nqi tsis tuaj yeem dhau los ntawm lipid bilayer los ntawm nthuav tawm . Temperature Feem ntau, qhov kub thiab txias ua rau tag nrho molecules txav nrawm dua. Diffusion yog ib tug passive txav ntawm molecules sai dua molecule txav tau txhais ua nrawm dua nthuav tawm.
Pom zoo:
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