Qhov sib txawv tseem ceeb ntawm prokaryotic thiab eukaryotic ribosomes yog tias cov ribosomes prokaryotic yog 70S cov khoom uas muaj 50S loj subunit thiab 30S me subunit thaum lub eukaryotic ribosomes yog 80S hais muaj li ntawm 60S loj subunit.
Prokaryotes thiab eukaryotes yog ob pawg loj ntawm cov kab mob nyob uas txawv ntawm lub koom haum ntawm tes. Prokaryotes tsis muaj nucleus thiab membrane-bound cell organelles. Ntawm qhov tod tes, eukaryotes muaj cov nucleus thiab membrane-bound cell organelles. Muaj qee cov organelles uas muaj rau ob lub cev. Lub ribosome yog ib qho tseem ceeb thiab tseem ceeb organelles tam sim no nyob rau hauv ob leeg prokaryotic thiab eukaryotic hlwb. Lawv muaj nyob rau hauv cytoplasm ntawm txhua lub cell. Raws li txoj cai, protein thiab ribosomal RNA (rRNA) ua ke ua ribosomes. Thiab lawv muaj ob subunits uas yog loj subunit thiab ib tug me me subunit. Tsis tas li ntawd, lawv ua haujlwm tib yam uas yog kev txhais lus ntawm mRNA molecules rau hauv cov protein. Txij li thaum kev txhais lus yog ib qho tseem ceeb rau tag nrho cov kab mob nyob thiab nws tshwm sim hauv ribosomes, ribosomes tseem ceeb heev rau ob qho tib si prokaryotes thiab eukaryotes. Txawm hais tias muaj ntau qhov sib xws, muaj qee qhov sib txawv ntawm prokaryotic thiab eukaryotic ribosomes.
YProkaryotic Ribosomes yog dab tsi?
Prokaryotic ribosomes yog 70S ribosomes, uas yog me dua eukaryotic ribosomes. Lawv muaj ob subunits; me subunit thiab ib tug loj subunit. Cov subunit me me ntawm prokaryotic ribosomes yog 30S thaum lub subunit loj yog 50S. Cov ribosomes units no suav nrog Svedberg (S) qhov tseem ceeb nyob ntawm tus nqi ntawm cov sedimentation hauv centrifugation.
Daim duab 01: Prokaryotic Ribosomes
Ntxiv mus, hauv prokaryotes, rRNA raug teeb tsa ua peb txoj hauv kev ribosomes. Peb strands yog 16 S RNA, 5S RNA thiab 23S RNA. Tsis zoo li eukaryotic ribosomes, prokaryotic ribosomes tsis txuas nrog daim nyias nyias ntawm cov nucleus lossis endoplasmic reticulum. Lawv muaj nyob dawb hauv lub cytoplasm.
YEukaryotic Ribosomes yog dab tsi?
Eukaryotic ribosomes yog 80S cov khoom uas loj dua prokaryotic ribosomes. Lawv muaj 40S me subunit thiab 60S loj subunit. Tsis tas li ntawd, eukaryotic ribosomes muaj ribosomal protein ntau dua li cov prokaryotic ribosomes.
Daim duab 02: Eukaryotic Ribosomes
Muaj plaub kab ntawm RNA hauv eukaryotic ribosomes. Lawv yog 18S, 5S, 5.8S thiab 28S RNAs. Tsis zoo li prokaryotic ribosomes, eukaryotic ribosomes pom tau dawb hauv cov cytoplasm thiab tseem txuas nrog cov ntaub so ntswg nuclear thiab ER.
Dab tsi yog qhov zoo sib xws ntawm Prokaryotic thiab Eukaryotic Ribosomes?
- Prokaryotic thiab eukaryotic ribosomes yog cov khoom ntawm cov hlwb nyob.
- Lawv muab ib qhov chaw rau kev tsim cov protein.
- Tsis tas li ntawd, lawv yog tsim los ntawm RNA thiab ribosomal proteins.
- Tsis tas li, lawv muaj ob lub subunits ua los ntawm RNAs.
- Ntxiv mus, ob qho tib si muaj nyob hauv cytoplasm ntawm lub cell.
- Dhau li ntawd, lawv cov subunit me me tsim nrog ib txoj hlua ntawm RNA.
Qhov txawv ntawm Prokaryotic thiab Eukaryotic Ribosomes yog dab tsi?
Prokaryotic ribosomes yog me dua 70S hais thaum lub eukaryotic ribosomes loj dua 80S hais. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm prokaryotic thiab eukaryotic ribosomes. Tsis tas li ntawd, lwm qhov sib txawv ntawm prokaryotic thiab eukaryotic ribosomes yog tias cov ribosomes prokaryotic muaj 30S thiab 50S, chav tsev me thiab chav loj dua feem ntau, eukaryotic ribosomes muaj me subunit thiab loj subunit li 40S thiab 60S feem. Ntxiv mus, nyob rau hauv eukaryotes, rRNA nyob rau hauv ribosomes muaj plaub strands whereas, nyob rau hauv prokaryotes, rRNA yog teem rau hauv peb strands nyob rau hauv ribosomes. Li no nws kuj yog qhov txawv ntawm prokaryotic thiab eukaryotic ribosomes.
Tsis tas li, hauv cov hlwb eukaryotic, ribosomes tam sim no yog cov ntaub ntawv dawb thiab khi thaum nyob hauv cov hlwb prokaryotic, ribosomes muaj nyob hauv daim ntawv dawb hauv cytoplasm. Eukaryotic hlwb muaj chloroplasts thiab mitochondria li organelles, thiab cov organelles kuj muaj ribosomes 70S. Yog li ntawd, eukaryotic hlwb muaj ntau hom ribosomes (70S thiab 80S), thaum prokaryotic hlwb tsuas muaj 70S ribosomes. Eukaryotic ribosome muaj yim hom protein thiab plaub hom rRNA thaum prokaryotic ribosomes muaj peb hom rRNA thiab tsib caug hom protein. Yog li qhov no kuj yog qhov sib txawv ntawm prokaryotic thiab eukaryotic ribosomes.
Hauv qab no yog ib qho infographic ntawm qhov sib txawv ntawm prokaryotic thiab eukaryotic ribosomes uas nthuav tawm tag nrho cov kev sib txawv no ua ib sab ntawm kev sib piv.
Summary – Prokaryotic vs Eukaryotic Ribosomes
Lub ribosome yog qhov chaw ntawm cov protein synthesis hauv cov hlwb. Txawm li cas los xij, prokaryotic thiab eukaryotic ribosomes txawv ntawm ntau yam. Prokaryotic ribosomes yog 70S particles uas muaj 30S thiab 50S subunits. Ntawm qhov tod tes, eukaryotic ribosomes yog 80S particles uas muaj 40S thiab 60S subunits. Peb tuaj yeem xav txog qhov no yog qhov sib txawv tseem ceeb ntawm prokaryotic thiab eukaryotic ribosomes. Tsis tas li ntawd, prokaryotic ribosomes muaj peb strands ntawm RNA thaum eukaryotic ribosomes muaj plaub strands ntawm RNA. Prokaryotic ribosomes muaj nyob dawb nyob rau hauv lub cytoplasm ntawm lub cell thaum lub eukaryotic ribosomes muaj nyob rau hauv lub cytoplasm dawb li zoo raws li txuas rau nuclear thiab ER daim nyias nyias. Yog li, qhov no qhia txog qhov sib txawv ntawm prokaryotic thiab eukaryotic ribosomes.
