Puas tuaj yeem pab txav khoom hla ntawm daim nyias nyias?
Puas tuaj yeem pab txav khoom hla ntawm daim nyias nyias?

Video: Puas tuaj yeem pab txav khoom hla ntawm daim nyias nyias?

Video: Puas tuaj yeem pab txav khoom hla ntawm daim nyias nyias?
Video: Paj Vuam Thoj, Sonie Thoj, Nkauj Hub Lauj - TsisTxob Hlub Tub Kawm Dongdot(Nkauj Tawm Tshiab)4/30/21 2024, Kaum ib hlis
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Cov proteins thauj mus rau hauv lub cell daim nyias nyias yog feem ntau xaiv heev txog cov tshuaj uas lawv tso cai rau ntoo khaub lig. Qee cov protein no tuaj yeem txav mus los cov ntaub ntawv hla ntawm daim nyias nyias tsuas yog thaum pab los ntawm qhov concentration gradient, ib hom kev thauj mus los-pab hu ua facilitated diffusion.

Xav txog qhov no, yuav ua li cas cov khoom txav hla lub cell membrane?

Diffusion los ntawm ib tug permeable membrane txav Ib yam khoom los ntawm thaj chaw siab siab (cov kua dej ntxiv, hauv qhov no) cia nws cov concentration gradient (rau hauv cytoplasm). Passive daim ntawv ntawm kev thauj mus los, diffusion thiab osmosis, txav cov ntaub ntawv me me molecular hnyav nyob rau hauv daim nyias nyias.

Ib yam li ntawd, cov piam thaj txav mus rau hauv cov cell membrane li cas? Glucose nyiam txav los ntawm thaj chaw siab concentration mus rau thaj tsam ntawm qhov tsis tshua muaj siab, txheej txheem hu ua diffusion. Vim lub qabzib transporter ua hauj lwm nrog cov concentration gradient, nws cov txheej txheem ntawm txav cov piam thaj hla lub cell membrane hu ua facilitated diffusion.

Ua raws li qhov xav tau, qhov loj npaum li cas cuam tshuam rau kev txav ntawm cov ntaub ntawv hla lub cell membrane?

Yog tias qhov loj ntawm a cell tsub kom nws yuav nyuaj dua (tag nrho lwm yam yog sib npaug) rau diffusion mus thauj cov ntaub ntawv tawm ntawm cell . Yog vim li cas rau qhov no yog vim hais tias ntawm kev hloov nyob rau hauv lub nto rau cheeb tsam ratio ntawm lub cell . Diffusion yuav tsum tshwm sim, raws li koj hais, hla lub cell nto.

Vim li cas cov hlwb yuav tsum txav cov tshuaj los ntawm lawv daim nyias nyias?

Xaiv permeability, tso cai rau qee yam tshuaj kom hla nws yooj yim dua li lwm tus.

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