Koj yuav pom phospholipids nyob qhov twg hauv cov kab mob ntawm tes?
Koj yuav pom phospholipids nyob qhov twg hauv cov kab mob ntawm tes?

Video: Koj yuav pom phospholipids nyob qhov twg hauv cov kab mob ntawm tes?

Video: Koj yuav pom phospholipids nyob qhov twg hauv cov kab mob ntawm tes?
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Cov txheej membrane ntawm Gram-negative kab mob Nyob rau hauv sib piv, muaj ib tug asymmetric kev npaj ntawm phospholipids : feem ntau phospholipids nyob rau hauv daim ntawv ntawm daim nyias nyias thaum lub sab nrauv muaj ib co phospholipids , tab sis kuj muaj cov proteins thiab hloov kho lipid molecules hu ua lipopolysaccharides (LPS).

Raws li txoj cai, puas yog txhua tus kab mob muaj phospholipids?

Kab mob daim nyias nyias yog muaj li ntawm 40 feem pua phospholipid thiab 60 feem pua ntawm cov protein. Cov phospholipids yog amphiphilic molecules nrog ib tug polar hydrophilic glycerol "lub taub hau" txuas los ntawm ib tug ester daim ntawv cog lus rau ob nonpolar hydrophobic fatty acid tails, uas ib txwm tsim ib tug bilayer nyob rau hauv aqueous ib puag ncig.

Tom qab, lo lus nug yog, kab mob ntawm tes ua haujlwm yog dab tsi? Bacterial Cell Function Hauv cov phiaj xwm loj ntawm cov khoom, cov muaj nuj nqi ntawm txhua tus kab mob cell pib thiab xaus nrog kev sau cov as-ham txaus kom muaj sia nyob. Cov kab mob kab mob muaj cov phospholipid bilayer, thiab qee zaum muaj ib txheej ntawm peptidoglycan.

Ib yam li ntawd, nws raug nug, dab tsi yog kab mob cell membrane?

Cell Membrane . Cov lus teb yog qhov cell membrane . Cov cell membrane yog phospholipid bilayer uas tag nrho ib puag ncig ib kab mob cell . Lo lus 'ua tiav' yog qhov tseem ceeb ntawm no vim tias kev so hauv bilayer yuav ua rau tuag ntawm tus kab mob.

Dab tsi yog qhov tseem ceeb ntawm cov kab mob ntawm tes?

Lub cell procaryotic muaj tsib yam tseem ceeb ntawm cov qauv: nucleoid (DNA), cov ribosomes , cell membrane, cell phab ntsa, thiab qee yam txheej txheej, uas tej zaum yuav los yog tsis yog ib feem ntawm phab ntsa.

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