Video: Dab tsi cov cab kuj muaj protein pab hauv kev yooj yim diffusion?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Channel cov proteins , ua tsaug channel cov proteins , thiab carrier proteins yog peb hom kev thauj mus los cov proteins uas koom nrog yooj yim diffusion . Ib channel protein ntau , ib hom kev thauj mus los protein ntau , ua zoo li lub pore nyob rau hauv daim nyias nyias uas cia cov dej molecules los yog me me ions los ntawm sai sai.
Raws li txoj cai, lub luag hauj lwm ntawm cov cab kuj proteins nyob rau hauv yooj yim diffusion yog dab tsi?
Muaj nuj nqi . Cov carrier proteins pab txhawb nthuav tawm ntawm cov molecules hla lub cell membrane. Cov protein ntau yog imbedded nyob rau hauv lub cell membrane thiab npog tag nrho cov membrane. Qhov no yog qhov tseem ceeb vim qhov tus cab kuj yuav tsum thauj cov molecule nyob rau hauv thiab tawm ntawm lub cell.
Qhov thib ob, dab tsi molecules siv yooj yim diffusion? Facilitated diffusion yog li tso cai rau polar thiab them cov molecules, xws li carbohydrates , amino acids , nucleosides , thiab ions, hla lub ntshav ntshav daim nyias nyias. Ob chav kawm ntawm cov proteins uas kho kom yooj yim diffusion yog feem ntau distinguished: carrier proteins thiab channel cov proteins.
Ib yam li ntawd, tej zaum koj yuav nug, puas yog qhov yooj yim diffusion siv cov channel lossis cov khoom thauj khoom?
Ib qho Closer Saib: Yooj yim Diffusion Carriers Muaj ob hom yooj yim diffusion nqa : Channel cov protein thauj tsuas yog dej lossis qee yam ions. Lawv ua yog li los ntawm kev tsim ib protein ntau -lined passageway hla lub membrane. Ntau cov dej molecules los yog ions tuaj yeem hla hauv ib cov ntaub ntawv los ntawm xws li cov channel ntawm tus nqi ceev heev.
Carrier proteins thauj dab tsi?
Carrier proteins yog cov proteins koom nrog hauv kev txav ntawm ions, me me molecules, lossis macromolecules, xws li lwm yam protein ntau , hla ib daim nyias nyias. Carrier proteins yog ib daim nyias nyias cov proteins ; uas yog, lawv muaj nyob rau hauv thiab nthuav lub membrane hla uas lawv thauj tshuaj.
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
Dab tsi yog cov cab kuj feem ntau hauv ap hom semiconductor?
Nyob rau hauv p-hom semiconductor, muaj ntau lub qhov. Yog li, qhov yog feem ntau tus nqi thauj khoom hauv p-hom semiconductor. Lub qhov (feem ntau tus neeg nqa khoom) nqa feem ntau ntawm cov nqi hluav taws xob lossis hluav taws xob tam sim no hauv p-hom semiconductor
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Vim li cas cov neeg caij tsheb yuav tsum tau pab los ntawm cov cab kuj molecule?
Vim li cas cov neeg caij tsheb yuav tsum tau pab los ntawm cov cab kuj molecule? Cov neeg caij tsheb molecules xav tau kev pab vim lawv tsis tuaj yeem haum los ntawm cov cell membrane. Yooj yim diffusion nrog kev pab los ntawm cov cab kuj molecule tsis xav tau lub zog, nws mus los ntawm ntau dua concentration mus rau qis concentration
Yuav ua li cas yog cov carrier proteins uas pab kom yooj yim diffusion?
Channel proteins, gated channel proteins, thiab carrier proteins yog peb hom thauj cov proteins uas koom nrog hauv kev yooj yim diffusion. Cov protein channel, ib hom thauj protein, ua zoo li lub pore hauv daim nyias nyias uas cia cov dej molecules los yog cov ions me me dhau los sai