Cov txheej txheem:
Video: Dab tsi yog 3 hom proteins pom nyob rau hauv cell membrane?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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
Ntawm no, cov proteins twg pom nyob rau hauv lub cell membrane?
Integral membrane proteins suav nrog 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).
Tom qab ntawd, lo lus nug yog, dab tsi yog qhov txawv ntawm cov txheej txheem membrane thiab lawv txoj haujlwm? Muaj nuj nqi
- Membrane receptor proteins relay signals ntawm lub cell sab hauv thiab sab nraud ib puag ncig.
- Thauj cov proteins txav cov molecules thiab ions hla lub membrane.
- Membrane enzymes yuav muaj ntau yam dej num, xws li oxidoreductase, transferase lossis hydrolase.
Tsis tas li lo lus nug yog, ob hom proteins twg muaj nyob hauv cell membrane?
Koj yuav kawm txog ob hom ntawm membrane proteins : peripheral cov proteins thiab integral cov proteins . Peripheral cov proteins muaj kev sib txuas tsis muaj zog thiab ib ntus rau cov daim nyias nyias.
Dab tsi yog tsib hom membrane proteins?
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.
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 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
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