Video: Dab tsi yog qhov tseem ceeb ntawm polypeptide synthesis?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub ribosome sib sau ua ke cov amino acids raug tsim los ua ib qho tshiab protein ntau . Cov protein yog tseem ceeb nyob rau hauv txhua lub hlwb thiab ua haujlwm sib txawv, xws li koom nrog cov pa roj carbon dioxide rau hauv qab zib hauv cov nroj tsuag thiab tiv thaiv cov kab mob los ntawm cov tshuaj phem. Yog protein synthesis mus tsis ncaj ncees lawm, kab mob xws li mob qog noj ntshav tuaj yeem tshwm sim.
Tsis tas li ntawd, kev ua haujlwm ntawm polypeptide synthesis yog dab tsi?
Polypeptide synthesis yog cov khoom siv roj ntsha ntawm peptides , uas yog cov organic tebchaw uas muaj ntau yam amino acids txuas ntawm peptide bonds. Polypeptides Thaum xub thawj muaj 1 lossis ntau dua cov amino acids, cov amino acids ntxiv yog tsim cov blocks cov proteins Txawm li cas los xij, proetins yog lub tsev thaiv rau cov kab mob.
Tsis tas li ntawd, polypeptide synthesized li cas? Koj lub hlwb siv lub cev qhuav dej synthesis txhawm rau txuas ntau cov amino acids ua ke thiab tsim ib qho polypeptide saw hlau. Thaum lub sij hawm tus txheej txheem no, ib tug dej molecule raug tshem tawm uas tsim ib tug peptide daim ntawv cog lus ntawm ob amino acids. Txhua polypeptide saw yog ib tug series ntawm cov amino acids koom ua ke nyob rau hauv ib tug tej yam ib theem zuj zus.
Tsis tas li ntawd, kev ua haujlwm ntawm cov protein synthesis yog dab tsi?
Ribosomal RNA (rRNA) koom nrog cov txheej txheem ntawm cov protein los tsim ribosomes. Cov qauv no complex, uas lub cev txav raws ib tug mRNA molecule, catalyze lub sib dhos ntawm cov amino acids rau hauv cov protein chains. Lawv kuj khi tRNAs thiab ntau yam khoom siv molecules tsim nyog rau kev tsim cov protein.
Puas yog polypeptide synthesis tib yam li protein synthesis?
Txij li feem coob ntawm cov noob tau hloov mus rau mRNA thiab mRNA tom qab tau muab txhais ua polypeptides los yog cov proteins , feem ntau gene code rau protein synthesis . Thaum tag nrho Cov proteins yog polypeptides , tsis yog tag nrho polypeptides yog cov proteins.
Pom zoo:
Dab tsi yog qhov txiaj ntsig tseem ceeb ntawm kev taw qhia ntawm tes los ntawm kev sib cuag lub cev ncaj qha?
Kev taw qhia kuj tshwm sim ntawm cov hlwb uas yog kev sib cuag ntawm lub cev. Kev sib cuam tshuam ntawm cov proteins ntawm qhov chaw ntawm cov hlwb tuaj yeem ua rau muaj kev hloov pauv hauv cov cwj pwm ntawm tes. Piv txwv li, cov proteins nyob rau saum npoo ntawm T-cells thiab antigen nthuav tawm cov hlwb sib cuam tshuam los ua kom muaj kev taw qhia hauv T-cells
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
Integers thiab floats yog ob yam sib txawv ntawm cov ntaub ntawv tus lej. Ib tus lej (feem ntau hu ua anint) yog tus lej tsis muaj tus lej lej. Float isa floating-point number, uas txhais tau hais tias nws yog tus lej uas muaj tus lej lej. Floats siv thaum xav tau ntau dua
Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?
Thaum koj pom tus nqi kiag li hauv qhov teeb meem lossis qhov sib npaug, nws txhais tau hais tias txhua yam nyob hauv tus nqi tiag tiag yog qhov zoo. Cov txiaj ntsig tsis zoo feem ntau siv rau hauv cov teeb meem cuam tshuam nrog kev nyob deb thiab qee zaum siv nrog qhov tsis sib xws. Qhov ntawd yog qhov tseem ceeb uas yuav tsum nco ntsoov nws zoo li qhov deb ntawm xoom
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
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