Qhov Tseem Ceeb Qhov txawv - Dawb vs Txuas Ribosomes
Ib ribosome yog ib qho me me puag ncig organelle uas yog lub npe hu ua lub Hoobkas protein ntawm lub cell. Ribosomes yog tsim nyob rau hauv lub nucleolus thiab thauj mus rau cytoplasm ntawm lub cell. Ob hom ribosomes pom nyob rau hauv cytoplasm. Lawv yog daim ntawv pub dawb los yog khi (nrog) daim ntawv. Qhov sib txawv tseem ceeb ntawm kev pub dawb thiab txuas ribosomes yog tias cov ribosomes dawb tsis txuas thiab nyob ywj pheej nyob rau hauv lub cytoplasm thaum txuas ribosomes txuas rau endoplasmic reticulum.
Lub luag haujlwm ntawm Ribosomes yog dab tsi?
Nws yog ib qho tseem ceeb kom nkag siab txog kev ua haujlwm ntawm ribosomes ua ntej nyeem txog qhov sib txawv ntawm cov dawb thiab txuas ribosomes. Ob leeg prokaryotic thiab eukaryotic hlwb muaj ribosomes. Proteins synthesis tshwm sim nyob rau hauv lub ribosomes ntawm lub hlwb. Thaum cov noob tau sau tseg, cov txiaj ntsig mRNA molecules raug muab txhais ua cov protein. Kev txhais lus tshwm sim hauv ribosomes. Ribosomes yog tsim los ntawm ribosomal RNA molecules thiab cov proteins. Lub ribosome muaj ob lub npe hu ua loj subunit thiab me subunit. Plaub rRNA molecules tuav cov qauv ntawm ribosome ua ke. Prokaryotic ribosomes yog 70S loj thiab eukaryotic ribosomes yog 80S loj.
Ob leeg pub dawb thiab khi ribosomes tsim cov proteins. Protein synthesis los ntawm DNA tau piav qhia hauv video hauv qab no.
Dab tsi yog Dawb Ribosomes?
Qee cov ribosomes nyob rau hauv lub cytoplasm tsis txuas rau lwm yam organelle. Lawv nyob dawb nyob rau hauv lub cytoplasm nyob rau hauv ib tug unbound lub xeev. Lawv hu ua dawb ribosomes. Cov ribosomes pab pawg ua ke thiab tsim cov qauv hu ua polysomes. Lawv nyob twj ywm nyob rau hauv lub cytoplasm thiab tsiv mus nyob ib ncig ntawm lub cell.
Daim duab 01: Dawb Ribosomes
Dawb ribosomes synthesize proteins hauv cytoplasm. Feem ntau ntawm cov proteins uas tsim los ntawm cov proteins dawb yog siv rau hauv lub cell. Feem ntau ntawm cov proteins no yog cov enzymes thiab koom nrog cov metabolism hauv macromolecules. Lwm cov proteins kuj siv rau cov metabolism hauv cov zaub mov.
Dab tsi yog Txuas Ribosomes?
Feem ntau ntawm cov ribosomes hauv ib lub xovtooj ntawm tes yog nyob rau ntawm qhov chaw endoplasmic reticulum. Lawv hu ua txuas los yog khi ribosomes. Ib qho endoplasmic reticulum nrog ribosomes txuas rau nws yog hu ua ntxhib endoplasmic reticulum. Thaum cov ribosomes txuas nrog, lawv tsis tuaj yeem txav mus los ntawm lub cell. Bound ribosomes txuas mus rau cytosolic sab ntawm endoplasmic reticulum.
Txuas ribosomes tsim cov proteins uas raug xa tawm ntawm lub cell mus rau sab nraud. Cov proteins no muaj xws li digestive enzymes, polypeptide cov tshuaj hormones, cell deg receptors, cell signaling molecules, thiab lwm yam. Cov proteins no secreted los ntawm lub cell siv secretory vesicles.
Daim duab 02: Bound Ribosomes
Dab tsi yog qhov zoo sib xws ntawm Dawb thiab Txuas Ribosomes?
- Dawb thiab txuas ribosomes ua cov proteins.
- Ob hom ribosomes yog tsim los ntawm rRNA thiab cov proteins.
- Ob hom ribosomes pom sab nraum lub nucleolus ntawm tes.
Qhov txawv ntawm Dawb thiab Txuas Ribosomes yog dab tsi?
Free vs Attached Ribosomes |
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| Dawb ribosomes yog cov organelles me nyob hauv cytoplasm. | Txuas ribosomes yog cov organelles me me txuas rau saum npoo ntawm endoplasmic reticulum. |
| Txhob Cia Siab | |
| Dawb ribosomes tsis txuas rau ib qho qauv ntawm tes. | Txuas ribosomes raug khi rau endoplasmic reticulum. |
| kev | |
| Dawb ribosomes tuaj yeem txav mus thoob lub cell. | Txuas ribosomes tsis tuaj yeem txav mus rau lwm qhov chaw ntawm tes. |
| proteins produced | |
| Free ribosomes synthesize proteins rau siv nyob rau hauv lub cell. | Txuas ribosomes tsim cov protein uas thauj tawm ntawm lub cell. |
Summary – Free vs Attached Ribosomes
Ib ribosome yog ib qho me me ntawm cov cell. Nws yog cov organelle uas tsim cov proteins los ntawm mRNA molecules. Yog li ntawd, ribosomes hu ua me me protein factories nyob rau hauv lub cell. Muaj ob hom ribosomes hauv ib lub cell. Qee cov ribosomes pub dawb hauv cytoplasm yam tsis tau txuas nrog lwm lub cev. Lawv hu ua dawb ribosomes. Qee cov ribosomes txuas rau endoplasmic reticulum thiab tsim ER ntxhib. Lawv paub tias yog khi los yog txuas ribosomes. Ob leeg ribosomes koom nrog hauv synthesizing proteins uas yuav tsum tau siv nyob rau hauv lub cell thiab uas yog tsim nyog los secrete sab nraum lub cell los yog siv nyob rau hauv lysosomes. Dawb ribosomes dawb txav mus nyob ib ncig ntawm lub cell thaum khi ribosomes tsis tuaj yeem hloov lawv qhov chaw. Qhov no yog qhov sib txawv ntawm cov dawb thiab attaché ribosomes.
Download PDF Version of Free vs Attached Ribosomes
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li cov ntawv sau tseg. Thov download PDF version ntawm no Qhov txawv nruab nrab ntawm Dawb thiab Txuas Ribosomes.
