Video: Qhov twg yog cytosolic proteins synthesized?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cytosolic proteins thiab cov proteins uas yog destined rau lub nucleus, mitochondria, chloroplasts thiab peroxisomes (koj yuav kawm txog lwm yam organelles tom qab hauv chav kawm no) yog ua ke los ntawm cov dawb ribosomes nyob rau hauv lub cytosol.
Tom qab ntawd, ib tug kuj yuav nug, qhov twg yog cov proteins synthesized?
Art of Protein Synthesis Nyob rau hauv eukaryotic hlwb, transcription tshwm sim nyob rau hauv lub nucleus. Thaum lub sijhawm sau ntawv, DNA yog siv los ua tus qauv los ua ib qho molecule ntawm tus xa xov RNA (mRNA). Cov molecule ntawm mRNA ces tawm ntawm lub nucleus thiab mus rau ib tug ribosome nyob rau hauv lub cytoplasm, qhov chaw txhais lus tshwm sim.
Tom qab, lo lus nug yog, yuav ua li cas proteins yog synthesized? Proteins yog synthesized stepwise los ntawm polymerization ntawm amino acids nyob rau hauv ib tug unidirectional yam, pib ntawm N-terminus thiab xaus ntawm C-terminus. Cov amino acids txuas los ntawm kev tsim cov peptide bonds, thiab cov txiaj ntsig polypeptide saw muaj ib qho ntawm 20 cov amino acids sib txawv ntawm txhua txoj haujlwm.
Kuj Paub, qhov twg yog cov proteins nyob rau hauv chloroplast synthesized?
Txawm tias chloroplasts encode ntau ntawm lawv tus kheej cov proteins tshaj mitochondria, txog 90% ntawm chloroplast cov protein tseem encoded los ntawm nuclear noob. Raws li nrog mitochondria, cov no cov proteins yog ua ke ntawm cytosolic ribosomes thiab ces import rau hauv chloroplasts raws li ua tiav polypeptide chains.
Qhov twg protein synthesis hauv neurons tshwm sim?
Protein synthesis tshwm sim nyob rau hauv ntau lub compartments nyob rau hauv neurons kom suav nrog lub dendrite, axon, thiab lub paj hlwb.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov pom tseeb qhov loj thiab qhov ntsuas qhov ntsuas qhov tseeb?
Dab tsi yog qhov txawv ntawm qhov pom tseeb thiab qhov tseeb? Pom meej qhov loj npaum li cas yog qhov ci ntawm lub hnub qub tshwm los ntawm lub ntiaj teb thiab nyob ntawm qhov ci thiab qhov deb ntawm lub hnub qub. Qhov loj npaum li cas yog qhov ci ntawm lub hnub qub yuav tshwm sim los ntawm tus qauv nyob deb
Qhov twg yog ribosomes synthesized?
Nyob rau hauv cov kab mob hlwb, ribosomes yog synthesized nyob rau hauv lub cytoplasm los ntawm transcription ntawm ntau ribosome noob operons. Hauv eukaryotes, cov txheej txheem yuav siv ob qho tib si nyob rau hauv lub cell cytoplasm thiab nyob rau hauv lub nucleolus, uas yog ib cheeb tsam nyob rau hauv lub cell nucleus
Lub organelle twg ua haujlwm raws li qhov chaw xa ntawv ntawm lub xov tooj ntawm tes txheeb cov proteins thiab xa lawv mus rau lawv qhov chaw xav tau sab hauv lossis sab nraud ntawm tes?
Golgi Hais txog qhov no, dab tsi organelle yog lub luag haujlwm rau kev thauj mus los? endoplasmic reticulum (ER Qhov thib ob, cov proteins txav mus los ntawm lub cell li cas? Cov proteins txav mus los endomembrane system thiab raug xa tawm los ntawm lub ntsej muag trans ntawm Golgi apparatus nyob rau hauv thauj vesicles uas txav mus los cytoplasm thiab tom qab ntawd fuse nrog plasma membrane tso tawm protein ntau mus rau sab nraum lub cell .
Qhov twg yog qhov zoo dua qhov kev xaiv ntuj los yog kev xaiv dag Yog vim li cas?
Thaum lub sij hawm xaiv ntuj, hom ciaj sia thiab kev yug me nyuam txiav txim siab cov yam ntxwv. Txawm hais tias tib neeg tuaj yeem txhim kho lossis ua rau lub cev muaj peev xwm los ntawm kev xaiv kev yug me nyuam, qhov xwm txheej cuam tshuam nws tus kheej nrog cov yam ntxwv uas tso cai rau qhov zoo rau cov tsiaj muaj peev xwm ua phooj ywg thiab muaj sia nyob
Qhov twg yog qhov mob theem proteins tsim?
Acute-phase proteins (APPs) yog circulating ntshav proteins feem ntau synthesized nyob rau hauv lub siab nyob rau hauv teb rau upstream inflammatory signals