2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov qauv dej mosaic piav qhia ntau yam kev soj ntsuam txog cov qauv ntawm cov cell ua haujlwm. Raws li cov qauv kev lom neeg no, muaj lipid bilayer nyob rau hauv uas cov protein molecules yog embedded. Lub lipid bilayer muab fluidity thiab elasticity rau daim nyias nyias.
Cov kua dej mosaic qauv yog dab tsi?
Cov kua dej mosaic qauv piav qhia cov qauv ntshav plasmaua mosaic ntawm phospholipids, cholesterol, proteins, thiab carbohydrates.
Vim li cas thiaj hu ua kua mosaic qauv?
Lub sij hawm "mosaic" ntawm tus qauv no yog hais txog kev sib xyaw ntawm lipids thiab cov protein nyob hauv lub cev hauv daim nyias nyias. Cov ciam teb no kuj yog "kua dej" vim lawv cov khoom tuaj yeem txav mus tom qab, tso cai rau ob qho tib si nthuav tawm ntawm cov khoom thiab cov kev sib sau hauv zos.
Cov kua dej hauv cov kua dej mosaic txhais li cas?
Tus Qauv Ua Kua Dej Mosaic hais tias membranes yog tsim los ntawm Phospholipid Bilayer nrog ntau cov protein molecules ntab nyob hauv nws. Qhov 'Fluid' yog qhov piv txwv li cas qee qhov ntawm daim nyias nyias tuaj yeem txav mus los ntawm kev ywj pheej, yog tias lawv tsis txuas rau lwm qhov ntawm tes.
Dab tsi yog cov haujlwm ntawm cov kua dej mosaic?
Cov qauv dej mosaic yog cov qauv siv tau zoo tshaj plaws ntawm cov plasma membrane. Nws lub luag haujlwm tseem ceeb yog txhawm rau cais cov ntsiab lus ntawm lub xov tooj ntawm sab nraud.
Pom zoo:
Cov pobzeb mosaic puas siv tau rau hauv da dej?
cov vuas mosaic yog qhov kev xaiv nrov tshaj plaws rau cov vuas da dej. Qhov me me ntawm cov vuas ib tus neeg txhais tau tias lawv ua raws li txoj kab nqes thiab cov duab ntawm cov da dej hauv pem teb zoo dua li cov pobzeb loj dua. Kuj tseem muaj cov kab ntau ntxiv nyob nruab nrab ntawm cov vuas mosaic, muab ntau qhov kev xav tau hauv cov da dej.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Puas yog cov kua dej nres lub hwj chim tswj cov kua dej?
Cov kua nplaum thiab lub hwj chim tswj cov kua dej yogob lub kua siv hauv lub tshuab hydraulic hauv cov tsheb niaj hnub, tab sis qhov zoo sib xws tsis mus deb tshaj qhov ntawd. Nres thiab lub hwj chim tswj cov kua dej tau tsim thiab ua kom zoo nyob rau ntau xyoo los ua haujlwm sib txawv hauv cov tsheb, thiab lawv tsis hloov pauv.
Puas yog cov roj cholesterol ua kom cov kua dej ua kua dej?
Thaum qhov kub thiab txias, cov roj cholesterol ua rau cov kua dej ua kom cov kua dej ntau dualos ntawm kev tiv thaiv cov lipids los ntawm kev ntim khoom sib ze. Thaum qhov kub thiab txias, cov roj (cholesterol) yuav txo qis hauv daim nyias nyias.
Nyob rau hauv lub kua muag kua muag?
kua muag kua muag feem ntau muaj cov khoom siv aerosolized lossis kua sib txuas ( bromoacetone lossis xylyl bromide xylyl bromide Xylyl bromide, tseem hu ua methylbenzyl bromide lossis T-stoff ("Substance-T"), yog ib tus tswv cuab.
