Video: Puas yog yooj yim diffusion passive thauj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yooj yim diffusion (tseem hu ua yooj yim thauj los yog passive - kho kom haum xeeb thauj ) yog tus txheej txheem ntawm spontaneous passive thauj (as opposed to kev thauj mus los ) ntawm cov molecules los yog ions thoob plaws hauv cov kab mob lom ntawm cov kab mob tshwj xeeb transmembrane integral proteins.
Ua raws li qhov kev pom no, vim li cas thiaj li yooj yim diffusion ib hom kev thauj mus los passive?
Kev piav qhia: Yooj yim diffusion yog a hom kev thauj mus los passive . Cov particles uas yog diffusing txav los ntawm cov proteins no nkag los yog tawm hauv lub cell vim hais tias cov hais tsis muaj peev xwm mus ncaj qha los ntawm cell membrane.
Tsis tas li ntawd, 4 hom kev thauj mus los passive yog dab tsi? Tus nqi ntawm passive thauj nyob ntawm qhov permeability ntawm cell membrane, uas, nyob rau hauv lem, nyob ntawm lub koom haum thiab yam ntxwv ntawm daim nyias nyias lipid thiab proteins. Plaub yam tseem ceeb ntawm kev thauj mus los yog qhov yooj yim diffusion, yooj yim diffusion, lim , thiab / lossis osmosis.
Qhov thib ob, Diffusion puas yog kev thauj mus los tsis zoo?
Thaum nquag thauj xav tau lub zog thiab ua haujlwm, passive thauj tsis. Muaj ntau ntau yam ntawm no yooj yim txav ntawm molecules. Nws tuaj yeem ua tau yooj yim li cov molecules txav dawb xws li osmosis lossis nthuav tawm . Txij li thaum lub cell membrane yuav tsis cia cov piam thaj hla los ntawm nthuav tawm , xav tau kev pab.
Dab tsi molecules siv passive thauj?
Tsis yog txhua yam nkag mus rau hauv lub cell los ntawm passive thauj . Tsuas yog qhov tsawg tshaj plaws molecules zoo li dej, carbon dioxide, thiab cov pa oxygen tuaj yeem nthuav tawm thoob plaws hauv cov cell. Loj dua molecules los yog them molecules feem ntau xav tau ib lub tswv yim ntawm lub zog ua thauj mus rau hauv lub cell.
Pom zoo:
Dab tsi yog qhov txawv ntawm osmosis diffusion thiab yooj yim diffusion?
Osmosis kuj tshwm sim thaum dej txav ntawm ib lub cell mus rau lwm qhov. Kev yooj yim diffusion ntawm qhov tod tes tshwm sim thaum qhov nruab nrab nyob ib puag ncig ntawm lub cell yog nyob rau hauv siab concentration ntawm ions los yog molecules tshaj qhov chaw nyob rau hauv lub cell. Cov molecules txav los ntawm ib puag ncig nruab nrab mus rau hauv lub cell vim diffusion gradient
Puas yooj yim diffusion siv cov protein raws?
Saib ze ze: Cov neeg nqa khoom yooj yim Diffusion Muaj ob hom kev sib koom ua ke ntawm cov neeg nqa khoom yooj yim: Channel proteins thauj tsuas yog dej lossis qee yam ions. Lawv ua li ntawd los ntawm kev tsim cov protein-lined passageway hla daim nyias nyias. Ntau cov dej molecules lossis ions tuaj yeem hla hauv ib cov ntaub ntawv los ntawm cov channel ntawm tus nqi nrawm heev
Yuav ua li cas diffusion cuam tshuam nrog kev thauj mus los passive?
Passive Transport: Yooj Yim Diffusion Diffusion hla lub cell membrane yog ib hom kev thauj mus los tsis zoo, lossis thauj hla cov cell membrane uas tsis xav tau lub zog. Cov molecules uas yog hydrophobic, ib yam li thaj tsam hydrophobic, tuaj yeem dhau los ntawm cov cell membrane los ntawm qhov yooj yim diffusion
Vim li cas thiaj yooj yim diffusion tsis yog hom kev thauj mus los?
Qhov sib txawv no yog tias kev thauj mus los xav tau lub zog, thaum uas yooj yim diffusion tsis xav tau lub zog. Lub zog uas nquag thauj siv yog ATP (adenosine triphosphate). Lub zog xav tau nyob rau hauv daim ntawv no ntawm kev thauj mus los vim hais tias cov khoom yuav tawm tsam cov concentration gradient
Puas yooj yim diffusion nquag thauj?
Thaum kev thauj mus los xav tau lub zog thiab kev ua haujlwm, kev thauj mus los tsis zoo. Muaj ntau ntau yam ntawm no yooj yim txav ntawm molecules. Nws tuaj yeem yooj yim npaum li cov molecules txav tau yooj yim xws li osmosis lossis diffusion. Nws yog ib qho txheej txheem hu ua facilitated diffusion