Video: Lub luag haujlwm ntawm cytoplasmic membrane yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov ntshav ntshav membrane, tseem hu ua cytoplasmic membrane, yog qhov dynamic tshaj plaws qauv ntawm procaryotic cell. Nws lub luag haujlwm tseem ceeb yog ib qho kev xaiv permeability barrier uas tswj cov kev nkag mus ntawm cov khoom mus rau hauv thiab tawm ntawm lub cell.
Ua kom pom qhov no, cytoplasmic membrane ua li cas?
Cov plasma daim nyias nyias (tseem hu ua cell membrane los yog cytoplasmic membrane ) yog biological daim nyias nyias uas cais sab hauv ntawm a cell los ntawm nws qhov chaw sab nraud. Lub luag haujlwm tseem ceeb ntawm lub plasma daim nyias nyias yog los tiv thaiv cell los ntawm nws ib puag ncig.
Tsis tas li ntawd, 3 lub luag haujlwm ntawm lub cell membrane yog dab tsi? Cov kab mob lom neeg muaj peb lub luag haujlwm tseem ceeb: (1) lawv khaws cov tshuaj lom neeg tawm ntawm tes; (2) lawv muaj cov receptors thiab cov channel uas tso cai rau cov molecules tshwj xeeb, xws li ions, cov as-ham , pov tseg, thiab cov khoom lag luam metabolic, uas kho cov haujlwm ntawm cellular thiab extracellular kom dhau ntawm cov organelles thiab nruab nrab ntawm cov
Ua raws li qhov xav tau, kev ua haujlwm ntawm cytoplasmic membrane hauv cov kab mob yog dab tsi?
Lub plasma membrane los yog kab mob cytoplasmic membrane yog tsim los ntawm ib tug phospholipid bilayer thiab yog li muaj tag nrho cov kev khiav hauj lwm ntawm lub cell membrane xws li ua ib tug permeability barrier rau feem ntau molecules thiab ua hauj lwm raws li qhov chaw nyob rau hauv lub cell membrane. thauj ntawm molecules nyob rau hauv lub cell.
Ob txoj haujlwm ntawm lub cell membrane yog dab tsi?
Cov cell membrane , yog li ntawd, muaj ob lub luag haujlwm : ua ntej, los ua ib tug barrier khaws cov constituents ntawm lub cell nyob rau hauv thiab pliaj tshuaj tawm thiab, thib ob, los ua lub rooj vag tso cai thauj mus rau hauv lub cell ntawm qhov tseem ceeb cov as-ham thiab txav los ntawm lub cell ntawm cov khoom pov tseg.
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