Cov txheej txheem:
Video: Dab tsi yog 2 hom proteins pom nyob rau hauv cell membrane?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
2 yog cov ntaub ntawv uas muaj nyob rau hauv integral membrane proteins , xws li, transmembrane α-helix protein ntau , transmembrane α-helical protein ntau thiab transmembrane β-daim ntawv protein ntau . Ib qho monotopic cov proteins yog ib hom ntawm integral membrane proteins uas txuas nrog tsuas yog ib sab ntawm lub daim nyias nyias thiab tsis txhob hla tag nrho txoj kev hla.
Yog li ntawd, ob hom proteins nyob rau hauv lub cell membrane yog dab tsi?
Koj yuav kawm txog ob hom ntawm membrane proteins : peripheral cov proteins thiab integral cov proteins.
Tsis tas li ntawd, hom membrane proteins thiab lawv txoj haujlwm yog dab tsi? Lawv txoj haujlwm yog tsuas yog los tswj kev thauj ntawm cov molecules tshwj xeeb thoob plaws lub daim nyias nyias . Nyob ntawd yog ob qho yooj yim hom ntawm transmembrane cov proteins , alpha-helical thiab beta-barrels, uas tau tham hauv Organic Compounds: Cov protein (Advanced).
Yog li ntawd, 6 hom membrane proteins yog dab tsi?
6 Yam tseem ceeb ntawm Membrane Proteins (nrog daim duab)
- Peripheral (Extrinsic) Proteins:
- Integral (Intrinsic) Proteins:
- Integral Proteins Uas Tshaj Tawm Membrane:
- Asymmetric Distribution ntawm Membrane Proteins:
- Mobility ntawm Membrane Proteins:
- Enzymatic Properties ntawm Membrane Proteins:
- Ectoenzymes thiab Endoenzymes:
- Kev rho tawm thiab tus yam ntxwv ntawm Membrane Proteins:
Ob hom thauj proteins yog dab tsi?
Carrier proteins thiab channel proteins yog ob chav loj ntawm daim nyias nyias thauj cov protein. Carrier proteins (tseem hu ua carriers, permeases, los yog transporters) khi cov ntsiab lus uas yuav tsum tau thauj thiab undergo ib tug series ntawm conformational kev hloov pauv mus rau lub bound solute thoob plaws lub daim nyias nyias (Daim duab 11-3).
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
Lub ntsiab lus twg yog pom nyob rau hauv qhov tsuas yog nyob rau hauv tebchaw quizlet?
Halogens yeej ib txwm pom nyob rau hauv cov xwm txheej incompounds vim hais tias halogens yog heev reactivenonmetals
Cov proteins twg pom muaj nyob hauv cell membrane?
Integral membrane proteins muaj xws li transmembrane proteins thiab lipid-anchored proteins. Ob hom membrane-spanning domains muaj nyob rau hauv transmembrane proteins: ib los yog ntau tshaj α helices los yog, tsawg dua, ntau β strands (raws li nyob rau hauv porins)
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
Nyob rau hauv dab tsi organelle yog pyruvate oxidation nqa tawm nyob rau hauv ib lub cell?
Pyruvate oxidation cov kauj ruam Pyruvate yog tsim los ntawm glycolysis nyob rau hauv lub cytoplasm, tab sis pyruvate oxidation tshwm sim nyob rau hauv lub mitochondrial matrix (hauv eukaryotes). Yog li, ua ntej cov tshuaj tiv thaiv tuaj yeem pib, pyruvate yuav tsum nkag mus rau mitochondrion, hla nws daim nyias nyias thiab tuaj txog ntawm matrix