Video: Yuav ua li cas yog cov carrier proteins uas pab kom 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 thauj cov protein uas koom nrog yooj yim diffusion . Ib channel protein ntau , ib hom thauj protein , 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.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog lub luag hauj lwm ntawm carrier proteins nyob rau hauv yooj yim diffusion?
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.
Ib yam li ntawd, cov tshuaj twg siv cov khoom siv thauj khoom los hla cov plasma membrane los ntawm kev yooj yim diffusion? Txawm hais tias cov piam thaj tuaj yeem muaj ntau dua sab nraud ntawm lub cell, nws ua tsis tau ntoo khaub lig Lub lipid bilayer ntawm yooj yim nthuav tawm vim nws yog ob qho loj thiab polar. Txhawm rau daws qhov no, ib qho tshwj xeeb carrier protein hu ua glucose thauj yuav hloov cov piam thaj molecules rau hauv lub cell mus rau pab txhawb nws sab hauv nthuav tawm.
Tom qab ntawd, lo lus nug yog, 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.
Dab tsi siv tau yooj yim diffusion?
Nyob rau hauv lub cell, piv txwv ntawm molecules uas yuav tsum tau siv yooj yim diffusion mus rau hauv thiab tawm ntawm lub cell membrane yog qabzib, sodium ions, thiab poov tshuaj ions. Lawv dhau los ntawm kev siv cov khoom thauj cov protein los ntawm cov cell membrane yam tsis muaj zog raws li cov concentration gradient.
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 proteins channel?
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 yog qhov tshwm sim uas ib tug poj niam dig muag xim uas yuav ib tug txiv neej uas tsis pom kev zoo yuav muaj xim dig muag me nyuam?
Yog tias tus poj niam uas muaj lub zeem muag zoo li no (heterozygous rau qhov muag tsis pom xim) yuav ib tug txiv neej ib txwm muaj (XY), cov xeeb ceem hauv qab no tuaj yeem xav tau hauv F2 tiam: ntawm cov ntxhais, 50% yog ib txwm muaj thiab 50% yog cov neeg nqa khoom rau cov kab mob; ntawm cov tub, 50% yog xim dig muag thiab 50% yog qhov pom kev zoo
Koj yuav rho tawm thiab ua kom yooj yim cov feem ntau li cas?
Txoj Kev 2 Simplifying tus feem Sau cov feem ntawm ib daim ntawv. Muab 14 hla 28 nrog ib kab nyob nruab nrab. Sau qhov sib npaug. Muab ib sab faib rau sab xis ntawm txhua tus lej. Faib tawm ob tus lej. Faib ob qho 14 thiab 28 los ntawm 14. Sau cov lus teb ua ib feem. Tshawb xyuas koj txoj haujlwm
Dab tsi cov cab kuj muaj protein pab hauv kev 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