Video: Dab tsi yog qhov chaw ntawm cov protein synthesis hauv cell?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Protein yog assembled hauv hlwb los ntawm ib qho organelle hu ua ribosome. Ribosomes muaj nyob hauv txhua qhov loj cell hom thiab yog cov site ntawm protein synthesis.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog cell protein synthesis?
Protein synthesis yog cov txheej txheem biological uas hlwb tsim cov proteins los ntawm RNA. Lawv yog cov tseem ceeb thaum transcription (phenomena ntawm RNA synthesis los ntawm DNA template) thiab kev txhais lus (phenomena ntawm amino acid sib dhos los ntawm RNA).
Tom qab, lo lus nug yog, dab tsi yog cov txheej txheem ntawm protein synthesis? Protein synthesis yog cov txheej txheem uas cell ua cov proteins . Nws tshwm sim nyob rau hauv ob theem: transcription thiab translation. Kev hloov pauv yog hloov cov lus qhia caj ces hauv DNA mus rau mRNA hauv lub nucleus. Tom qab mRNA ua tiav, nws nqa cov lus qhia rau ribosome hauv cytoplasm.
Hauv qhov no, qhov chaw ntawm cov protein synthesis hauv eukaryotic hlwb yog dab tsi?
4.4 Ribosomes: ib qhov chaw ntawm cov protein synthesis . Cov mRNA molecules exported los ntawm lub nucleus raug muab txhais ua protein ntau hauv cytoplasm los ntawm ribosomes (uas yog RNA- protein ntau complexes, tsis yog organelles). Ribosomal qauv zoo ib yam nyob rau hauv prokaryotic thiab eukaryotic hlwb.
Dab tsi organelles koom nrog hauv protein synthesis?
Ribosomes thiab Endoplasmic Reticulum Ribosomes yog cov organelles lub luag hauj lwm rau cov protein txhais lus thiab muaj li ntawm ribosomal ua RNA (rRNA) thiab proteins. Ib txhia cov ribosomes muaj nyob rau hauv lub cytoplasm, ib yam khoom zoo li gel uas organelles ntab rau hauv thiab ib co muaj nyob rau hauv lub ntxhib endoplasmic reticulum.
Pom zoo:
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