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Video: Puas yog txoj kev lim ntshav tau ua haujlwm xaiv?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov dialysis tubing tau ua haujlwm xaiv permeable daim nyias nyias vim nws tso cai rau kev txav chaw ntawm cov molecules me me zoo li qab zib los ntawm nws tab sis nws tsis tso cai txav ntawm cov molecules loj xws li hmoov txhuv nplej siab.
Ib yam nkaus, puas tau siv cov lim ntshav los ua cov ntawv lim dej uas nkag tau los piav qhia koj cov lus teb?
Cov dialysis tubing yog tsim los ntawm cellulose fibers. Qhov no zoo li lub raj ncaj. Cov tub ntxhais kawm ntawv xaus lus tias cev dialysis tsis tso cai rau txhua yam tshuaj kom dhau mus tau yooj yim los ntawm qhov hws ntawm nws daim nyias nyias . Qhov no txhais tau tias nws yog xaiv hauv nws permeability rau cov khoom.
Qhov thib ob, txoj kev lim ntshav ua lub luag haujlwm li cas? Qhov no cev dialysis yog xaiv tau permeable rov tsim dua cellulose siv los qhia cov ntsiab cai ntawm osmosis thiab nthuav tawm. Pores nyob rau hauv daim nyias nyias tso cai hla dej, feem ntau ions, thiab cov molecules me me. Cov khoom hnyav hnyav hnyav xws li hmoov txhuv nplej siab, polysaccharides, cov rog thiab cov protein tau txwv.
Kuj Paub, cov piam thaj puas tuaj yeem txav los ntawm kev lim ntshav?
Ntshav qab zib hmoov txhuv nplej siab thiab iodine (potassium iodide) yuav npaj txhij hla dhau membrane ua cev dialysis.
Txoj kev lim ntshav sib txawv li cas ntawm lub cell tiag?
Zoo li a cell membrane , cev dialysis muaj ib nrab-permeable daim nyias nyias , uas tso cai rau me me molecule permeate los ntawm daim nyias nyias . Yog li ntawd, lub dialysis tubing ua raws li kev nthuav dav thiab cov txheej txheem osmosis ntawm cell membrane (Alberts, 2002).
Pom zoo:
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