Video: Yuav ua li cas protein synthesis?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Protein synthesis yog cov txheej txheem uas cov hlwb ua cov proteins . Nws tshwm sim nyob rau hauv ob theem: transcription thiab translation. Kev sau ntawv yog Kev hloov pauv ntawm cov lus qhia caj ces hauv DNA rau mRNA hauv lub nucleus. Tom qab mRNA yog ua tiav, nws nqa cov lus qhia rau ribosome hauv cytoplasm.
Tom qab ntawd, ua li cas koj ua cov protein synthesis?
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.
Ib sab saum toj no, dab tsi yog 5 kauj ruam ntawm kev tsim cov protein? 5 Cov theem tseem ceeb ntawm Protein Synthesis (piav qhia nrog daim duab) |
- (a) Ua kom cov amino acids:
- (b) Hloov cov amino acid rau tRNA:
- (c) Pib ntawm polypeptide saw:
- (d) Chain Termination:
- (e) Protein translocation:
Ib yam li ntawd ib tug yuav nug, qhov twg yog qhov chaw ntawm cov protein synthesis?
Protein yog sib sau ua ke hauv cov hlwb los ntawm ib qho organelle hu ua ribosome. Ribosomes muaj nyob rau hauv txhua hom cell loj thiab yog cov site ntawm protein synthesis.
Lub hom phiaj ntawm protein synthesis yog dab tsi?
Protein synthesis yog cov txheej txheem tag nrho cov hlwb siv los ua cov proteins , uas yog lub luag haujlwm rau tag nrho cov qauv ntawm tes thiab kev ua haujlwm. Hauv kev sau ntawv, DNA tau theej rau mRNA, uas yog siv los ua tus qauv rau cov lus qhia ua protein ntau . Hauv kauj ruam thib ob, kev txhais lus, mRNA yog nyeem los ntawm ribosome.
Pom zoo:
Vim li cas cov txheej txheem ntawm cov protein synthesis tseem ceeb rau lub neej?
Protein synthesis yog cov txheej txheem tag nrho cov hlwb siv los ua cov protein, uas yog lub luag haujlwm rau tag nrho cov qauv ntawm tes thiab kev ua haujlwm. Proteins tseem ceeb 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
DNA ncaj qha protein synthesis li cas?
Hom RNA uas muaj cov ntaub ntawv los ua cov protein hu ua messenger RNA (mRNA) vim nws nqa cov ntaub ntawv, lossis cov lus, los ntawm DNA tawm ntawm lub nucleus mus rau hauv cytoplasm. Los ntawm cov txheej txheem ntawm kev sau thiab txhais lus, cov ntaub ntawv los ntawm cov noob yog siv los ua cov protein
Yuav ua li cas cycloheximide inhibit protein synthesis?
Cycloheximide yog ib yam kab mob tshwm sim los ntawm cov kab mob Streptomyces griseus. Cycloheximide exerts nws cov teebmeem los ntawm kev cuam tshuam nrog cov kauj ruam ntawm kev hloov pauv hauv cov protein synthesis (kev txav ntawm ob lub tRNA molecules thiab mRNA nyob rau hauv kev sib raug zoo rau lub ribosome), yog li thaiv eukaryotic translational elongation
Yuav ua li cas unwinds DNA nyob rau hauv protein synthesis?
Kev sau ntawv. Kev hloov pauv yog cov txheej txheem uas DNA tau theej (tshaj tawm) rau mRNA, uas nqa cov ntaub ntawv xav tau rau kev tsim cov protein. Kev hloov pauv yuav tshwm sim hauv ob kauj ruam dav. Ua ntej, ua ntej tus tub txib RNA yog tsim, nrog rau kev koom tes ntawm RNA polymerase enzymes
Vim li cas txhua lub hlwb yuav tsum ua cov protein synthesis?
Protein synthesis yog cov txheej txheem tag nrho cov hlwb siv los ua cov protein, uas yog lub luag haujlwm rau tag nrho cov qauv ntawm tes thiab kev ua haujlwm. Lub ribosome, uas yog ib feem ntawm lub cell uas yuav tsum tau rau cov protein synthesis, qhia tRNA kom tau txais cov amino acids, uas yog lub tsev blocks ntawm proteins