Puas yog thauj cov protein tshwj xeeb?
Puas yog thauj cov protein tshwj xeeb?

Video: Puas yog thauj cov protein tshwj xeeb?

Video: Puas yog thauj cov protein tshwj xeeb?
Video: Dais thiab nab qa sib xeem tsheb kauj vab 2024, Kaum ib hlis
Anonim

Lub plasma membrane yog permeable rau tshwj xeeb molecules uas lub cell xav tau. thauj cov protein nyob rau hauv lub cellmembrane tso cai rau kev xaiv hla ntawm tshwj xeeb molecules los ntawm ib puag ncig sab nraud. Txhua thauj protein yog tshwj xeeb mus rau ib tug certian molecule (qhia los ntawm matchingcolors).

Ib yam li ib tug yuav nug, puas yog cov proteins tshwj xeeb?

Channel Protein Txhais. A channelprotein yog ib qho tshwj xeeb ntawm cov amino acids uas embeds hauv cell membrane, muab ib tug hydrophilic passageway rau dej thiab me me, polar ions. Zoo li txhua yam kev thauj mus los cov proteins , cwb channel protein muaj qhov loj thiab cov duab uas tsis suav tag nrho butthe feem ntau tshwj xeeb molecules.

Tsis tas li ntawd, cov khoom thauj khoom puas yog thauj cov protein? Carrier proteins yog cov proteins koom nrog hauv kev txav ntawm ions, me me molecules, lossis macromolecules, xws li lwm yam protein ntau , hla ib daim nyias nyias. Cov cov proteins tuaj yeem pab hauv kev txav ntawm cov khoom los ntawm kev sib kis tau yooj yim (piv txwv li, passive thauj ) los yog active thauj.

Ib tug kuj yuav nug, dab tsi thauj cov proteins hauv ib lub cell?

Qhov tseeb, ob lub organelles thauj protein hauv aeukaryotic cell (Multicellular kab mob): (ntxhib) Endoplasmic Recticulum thiab Golgi Apparatus. Cov protein , nqa cov cim qhia ua ntu zus, raug thauj los ntawm endoplasmicrecticulum, ntim rau hauv vesicles, mus rau golgi apparatus (orgolgi.

Yuav ua li cas cov proteins thauj mus rau hauv lub cell membrane?

Active thauj feem ntau tshwm sim hla lub cell membrane . Muaj ntau txhiab leej cov proteins embedded hauv cell cov lipid cov ntsiab lus. Cov cov proteins ua haujlwm ntau hauv kev ua haujlwm thauj . Lawv positioned tocross lub daim nyias nyias yog li ib feem yog nyob rau hauv lub cell thiab ib feem yog nyob rau sab nraud.

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