Fluidity yog ib qho tseem ceeb rau ntau yam: 1. nws tso cai rau daim nyias nyias cov proteins sai sai hauv lub dav hlau ntawm bilayer. 2. Nws tso cai rau daim nyias nyias lipids thiab cov protein kom nthuav tawm ntawm qhov chaw uas lawv tau muab tso rau hauv bilayer tom qab lawv cov synthesis.
Vim li cas qhov fluidity ntawm daim nyias nyias yog qhov tseem ceeb rau kev ua haujlwm ntawm tes thiab yuav ua li cas lub cell thiaj tswj tau cov kua dej ntawm daim nyias nyias?
Ua ntej, nws yog kua. Qhov no tso cai rau cov hlwb hloov cov duab, tso cai rau kev loj hlob thiab txav mus los. Lub fluidity ntawm daim nyias nyias yog tswj los ntawm hom phospholipids thiab muaj cov roj cholesterol. Thib ob, phospholipid membrane yog xaiv permeable.
Vim li cas membrane fluidity tseem ceeb rau cov lus nug ntawm tes?
Lub fluidity ntawm ib daim nyias nyias ua kom muaj ntau cov membrane proteins kom diffuse sai hauv lub dav hlau ntawm lub bilayer thiab sib cuam tshuam nrog ib leeg, raws li qhov tseem ceeb, piv txwv li, hauv xov tooj ntawm tes taw qhia. Vim tias daim nyias nyias yog cov kua dej ob sab, ntau ntawm nws cov proteins, zoo li nws cov lipids, tuaj yeem txav mus los ntawm lub dav hlau ntawm lub bilayer.
Dab tsi yog peb yam uas cuam tshuam rau cov membrane fluidity?
Tam sim no, cia peb saib cov yam tseem ceeb uas cuam tshuam cov membrane fluidity
- Factor 1: Qhov ntev ntawm fatty acid tail. Qhov ntev ntawm fatty acid Tail cuam tshuam lub fluidity ntawm daim nyias nyias. …
- Factor 2: Kub. …
- Factor 3: Cov roj (cholesterol) cov ntsiab lus ntawm bilayer. …
- Factor 4: Lub degree ntawm saturation ntawm fatty acids tails.
Yuav ua li cas thiaj li ua kom cov membrane fluidity?
Ib txoj hauv kev ua kom cov kua dej ua kom muaj dej yog kom sov li daim nyias nyias. Lipids tau txais lub zog thermal thaum lawv raug cua sov; Lub zog lipids txav mus ncig ntau dua, npaj thiab rov ua dua tshiab, ua rau cov kua dej ntau dua.
