Video: Yuav ua li cas oxygen hla ntawm cell membrane?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov qauv ntawm lipid bilayer tso cai rau me me, tsis muaj cov khoom siv xws li oxygen thiab carbon dioxide, thiab hydrophobic molecules xws li lipids, rau hla dhau tus cell membrane , down lawv concentration gradient, los ntawm yooj yim diffusion.
Ua raws li qhov xav tau, ua li cas oxygen diffuse hla lub cell membrane?
Molecules uas hla kev ywj pheej cell membranes ua yog li los ntawm cov txheej txheem ntawm kev yooj yim nthuav tawm . Thaum tshiab oxygen molecules nyob rau hauv koj lub ntsws tuaj cuag koj cov ntshav liab hlwb , lawv diffuse ceev ceev hla koj cov ntshav liab cell daim nyias nyias rau hauv hlwb , los yog cia lawv cov concentration gradient.
Ib yam li ntawd, muaj pes tsawg lub cell membrane puas oxygen hla dhau? Koj tau txais tag nrho cov hlwb txoj cai, tab sis koj qhov teeb meem tsuas yog qhov no: oxygen diffuses dhau tus cell membrane nkag rau hauv cell , txav dhau tus cytoplasm , thiab diffuses dhau tus daim nyias nyias rov tawm lub cell . Yog li, rau txhua tus cell , koj yuav tsum suav 2 daim nyias nyias.
Kuj tseem paub, cov pa oxygen puas tuaj yeem cuam tshuam los ntawm lub cell membrane?
Tsuas yog me me, tsis-polar molecules, xws li oxygen thiab carbon dioxide, tau diffuse yooj yim hla tus daim nyias nyias.
Yuav ua li cas cov piam thaj dhau los ntawm cov cell membrane?
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 haujlwm nrog cov concentration gradient, nws cov txheej txheem ntawm kev txav mus los qabzib hla ntawm cell membrane hu ua facilitated diffusion.
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Yuav ua li cas H + txav hla lub membrane?
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Peb-point Testcross. Hauv kev txheeb xyuas kev sib txuas, peb lub ntsiab lus testcross yog hais txog kev txheeb xyuas qhov qub txeeg qub teg ntawm 3 alleles los ntawm kev sim hla ib qho triple heterozygote nrog triple recessive homozygote. Nws ua rau peb txiav txim siab qhov kev ncua deb ntawm 3 alleles thiab qhov kev txiav txim uas lawv nyob ntawm chromosome
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Yuav ua li cas oxygen nkag mus rau hauv lub cell membrane?
Cov qauv ntawm lipid bilayer tso cai me me, tsis muaj cov khoom siv xws li oxygen thiab carbon dioxide, thiab hydrophobic molecules xws li lipids, kom dhau los ntawm cov cell membrane, cia lawv cov concentration gradient, los ntawm kev yooj yim diffusion