Video: Qhov twg cov protein synthesis tshwm sim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
protein synthesis tshwm sim Nyob rau hauv cellular qauv hu ua ribosomes, pom sab nraum lub nucleus. Cov txheej txheem los ntawm cov ntaub ntawv genetic hloov los ntawm cov nucleus mus rau ribosomes hu ua transcription. Thaum transcription, ib tug strand ntawm ribonucleic acid (RNA) yog ua ke.
Ib yam li ntawd, nws yog nug, dab tsi yog qhov yuav tsum tau rau cov protein synthesis?
Lwm qhov kev xav tau loj rau protein synthesis yog tus txhais lus molecules uas lub cev "nyeem" mRNA codons. Hloov RNA (tRNA) yog ib hom RNA uas ferries qhov tsim nyog cov amino acids coj mus rau ribosome, thiab txuas txhua cov amino acid tshiab mus rau qhov kawg, tsim cov polypeptide saw ib-los-ib.
Ib yam li ntawd, qhov twg cov protein synthesis tshwm sim hauv prokaryotes? Hauv prokaryotes , protein synthesis , txheej txheem ntawm kev ua protein ntau , tshwm sim nyob rau hauv lub cytoplasm thiab yog ua los ntawm ob kauj ruam: transcription thiab translation. Hauv kev sau ntawv, ntu ntawm DNA hu ua operons raug xa mus rau mRNA hauv cytoplasm los ntawm RNA polymerase.
Kuj kom paub yog, qhov thib ob theem ntawm cov protein synthesis tshwm sim?
mRNA Txhais Yog Kauj Ruam Thib Ob ntawm Protein Synthesis Thaum lub sij hawm transcription, cov ntaub ntawv encoded hauv DNA yog theej mus rau ib tus tub txib RNA ib ntus (mRNA), uas tom qab ntawd tuaj yeem txav mus los ntawm cov kab mob nucleus thiab tuaj yeem ncav cuag ribosomes hauv cytoplasm.
Koj piav qhia txog kev tsim cov protein li cas?
Protein synthesis yog ua tiav los ntawm tus txheej txheem hu ua kev txhais lus. Tom qab DNA tau sau rau hauv tus tub txib RNA (mRNA) molecule thaum lub sijhawm sau ntawv, mRNA yuav tsum tau muab txhais los ua ib qho protein ntau . Hauv kev txhais lus, mRNA nrog rau kev hloov RNA (tRNA) thiab ribosomes ua haujlwm ua ke los tsim cov proteins.
Pom zoo:
Qhov twg tshwm sim thawj lub teeb nyob ntawm qhov tshwm sim lossis lub teeb ywj pheej?
Lub Teeb-Dependent thiab Lub Teeb-Independent Reactions. Cov tshuaj tiv thaiv lub teeb, lossis cov tshuaj tiv thaiv lub teeb-dependent, yog thawj zaug. Peb hu lawv ob leeg thiab ob lub npe. Nyob rau hauv lub teeb-dependent tshwm sim ntawm photosynthesis, lub zog ntawm lub teeb propels lub electrons los ntawm ib tug photosystem mus rau lub high-zog lub xeev
Tus qauv yuav pab nrhiav qhov tshwm sim ntawm qhov kev tshwm sim sib xyaw li cas?
Lub ntsiab lus ntawm Qhov Muaj Peev Xwm Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej yog ib qho uas muaj ntau tshaj li qhov ua tau. Kev txiav txim siab qhov yuav tshwm sim ntawm qhov kev tshwm sim sib xyaw suav nrog kev nrhiav cov lej ntawm qhov tshwm sim ntawm tus kheej cov xwm txheej thiab, yog tias tsim nyog, tshem tawm qhov muaj feem sib tshooj
Qhov twg protein synthesis tshwm sim hauv cov nroj tsuag?
Ib qho kev cog qoob loo tsim cov proteins hauv peb qhov sib txawv: cytosol, plastids, thiab mitochondria. Kev txhais ntawm mRNAs transcribed nyob rau hauv lub nucleus tshwm sim nyob rau hauv lub cytosol. Nyob rau hauv sib piv, ob transcription thiab txhais ntawm plastid thiab mitochondrial mRNA tshwm sim nyob rau hauv cov organelles [2]
Qhov txheej twg yog huab cua tshwm sim feem ntau tshwm sim?
Troposphere. Lub troposphere (los ntawm Greek: tropein - hloov, ncig lossis sib xyaw) yog txheej qis tshaj plaws ntawm lub ntiaj teb huab cua. Feem ntau ntawm huab cua phenomena, systems, convection, turbulence thiab huab tshwm sim nyob rau hauv no txheej, tab sis tej zaum yuav mus rau hauv lub qis feem ntawm thestratosphere
Thawj kauj ruam ntawm cov protein synthesis yog dab tsi thiab nws tshwm sim qhov twg?
Thawj kauj ruam ntawm protein synthesis hu ua Transcription. Nws tshwm sim nyob rau hauv lub nucleus. Thaum lub sijhawm sau ntawv, mRNA luam tawm (daim ntawv theej) DNA, DNA yog 'unzipped' thiab mRNA strand luam ib strand ntawm DNA. Thaum nws ua li no, mRNA tawm ntawm lub nucleus thiab nkag mus rau hauv cytoplasm, mRNA yuav txuas nws tus kheej mus rau ribosome