Video: Cov proteins twg pom muaj nyob hauv cell membrane?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev tsis sib xws membrane proteins suav nrog transmembrane cov proteins thiab lipid-txheej txheem cov proteins . Ob hom ntawm daim nyias nyias -spanning domains yog pom hauv transmembrane cov proteins : ib los yog ntau tshaj α helices los yog, feem ntau tsawg, ntau β strands (raws li nyob rau hauv porins).
Ntawm no, nyob qhov twg cov proteins pom nyob rau hauv lub cell membrane?
Peripheral membrane proteins yog pom nyob rau sab nraud thiab sab hauv ntawm daim nyias nyias , txuas nrog rau ib qho cov proteins los yog phospholipids. Tsis zoo li ib qho membrane proteins , peripheral membrane proteins tsis txhob lo rau hauv cov tub ntxhais hydrophobic ntawm lub daim nyias nyias , thiab lawv zoo li yuav ua tau yooj yim dua.
Tsis tas li ntawd, 5 hom membrane proteins yog dab tsi? 1 Teb
- thauj cov protein. Cov transmembrane proteins tuaj yeem tsim cov pore lossis channel hauv daim nyias nyias uas yog xaiv rau qee cov molecules.
- Enzymes. Cov proteins no muaj cov haujlwm enzymatic.
- Teeb liab transduction proteins.
- Paub cov proteins.
- Koom nrog cov protein.
- Daim ntawv txuas.
Hais txog qhov no, dab tsi yog 3 hom proteins uas tuaj yeem pom hauv cell membrane?
Raws li lawv cov qauv, muaj lub ntsiab peb hom ntawm membrane proteins : thawj tus yog integral daim nyias nyias protein uas yog nyob mus ib txhis anchored los yog ib feem ntawm lub daim nyias nyias , ob hom yog peripheral daim nyias nyias protein uas tsuas yog txuas rau ib ntus rau lipid bilayer lossis rau lwm qhov sib xyaw cov proteins , thiab peb
Vim li cas cov protein muaj nyob hauv cell membranes?
Membrane proteins ua ntau yam haujlwm tseem ceeb rau kev ciaj sia ntawm cov kab mob: Membrane tus neeg txais kev pab cov proteins relay teeb liab ntawm lub cell cov sab hauv thiab sab nraud ib puag ncig. Kev thauj mus los cov proteins txav molecules thiab ions hla lub daim nyias nyias . Cell adhesion molecules tso cai hlwb los txheeb xyuas thiab sib tham.
Pom zoo:
Yuav ua li cas cov txheej txheem ntawm cell faib nyob rau hauv eukaryotes feem ntau zoo ib yam li cell faib nyob rau hauv prokaryotes?
Tsis zoo li eukaryotes, prokaryotes (uas suav nrog cov kab mob) tau txais ib hom kev faib cell hu ua binary fission. Hauv qee qhov, cov txheej txheem no zoo ib yam li mitosis; Nws yuav tsum tau rov ua dua ntawm cov cell chromosomes, cais ntawm cov theej DNA, thiab kev sib cais ntawm niam txiv cell cytoplasm
Nyob qhov twg cov chromosomes pom nyob rau hauv ib tug eukaryotic cell?
Cell nucleus
Cov proteins nyob qhov twg hauv lub cell membrane?
Peripheral membrane proteins muaj nyob rau sab nraud thiab sab hauv ntawm daim nyias nyias, txuas mus rau ib qho proteins lossis rau phospholipids
Dab tsi yog 2 hom proteins pom nyob rau hauv cell membrane?
2 yog cov ntaub ntawv muaj nyob rau hauv ib qho membrane proteins, xws li, transmembrane α-helix protein, transmembrane α-helical protein thiab transmembrane β-daim ntawv protein. Integral monotopic proteins yog ib hom integral membrane proteins uas txuas rau ib sab ntawm daim nyias nyias thiab tsis span tag nrho txoj kev hla
Dab tsi yog 3 hom proteins pom nyob rau hauv cell membrane?
Raws li lawv cov qauv, muaj peb yam tseem ceeb ntawm cov membrane proteins: thawj ib yog ib qho membrane protein uas yog mus tas li anched los yog ib feem ntawm daim nyias nyias, hom thib ob yog peripheral membrane protein uas tsuas yog ib ntus txuas rau lipid bilayer los yog rau lwm yam. integral proteins, thiab peb