Video: Koj yuav pom phospholipids nyob qhov twg hauv cov kab mob ntawm tes?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Pom zoo:
Koj tuaj yeem pom cov kab cab kab mob nyob qhov twg?
HABITAT. Beard worms nyob rau hauv dej hiav txwv pem teb ntawm continental slopes thiab hauv dej hiav txwv trenches. Qee hom tsuas yog pom nyob rau ntawm cov ntoo lwj ze ntawm lub hiav txwv tob tob ntawm qhov tob ntawm 328 txog 32,808 ko taw (100 txog 10,000 meters). Cov dej hiav txwv tob no hu ua hydrothermal vents
Lub organelle twg ua haujlwm raws li qhov chaw xa ntawv ntawm lub xov tooj ntawm tes txheeb cov proteins thiab xa lawv mus rau lawv qhov chaw xav tau sab hauv lossis sab nraud ntawm tes?
Golgi Hais txog qhov no, dab tsi organelle yog lub luag haujlwm rau kev thauj mus los? endoplasmic reticulum (ER Qhov thib ob, cov proteins txav mus los ntawm lub cell li cas? Cov proteins txav mus los endomembrane system thiab raug xa tawm los ntawm lub ntsej muag trans ntawm Golgi apparatus nyob rau hauv thauj vesicles uas txav mus los cytoplasm thiab tom qab ntawd fuse nrog plasma membrane tso tawm protein ntau mus rau sab nraum lub cell .
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Dab tsi yog cov kab mob piav qhia cov kab mob ntawm tes hauv kev nthuav dav?
Cov kab mob yog cov prokaryotes, tsis muaj cov nuclei zoo thiab cov kab mob sib txuas ua ke, thiab nrog cov chromosomes tsim los ntawm ib lub voj voog DNA kaw. Lawv tuaj nyob rau hauv ntau yam duab thiab ntau thiab tsawg, los ntawm feeb spheres, cylinders thiab kauv threads, rau flagellated rods, thiab filamentous chains
Koj yuav pom cov pob txha ntawm cov tsiaj ploj mus nyob qhov twg ntawm kab geology?
Cov pob txha ntawm cov kab mob uas ploj mus yuav nyob ze rau ntawm BOTTOM ntawm kab ke geology vim tias qhov ntawd yog qhov qub pob zeb txheej