Qhov tseem ceeb tshaj plaws nyob rau hauv lub nucleus yog lub nucleolus (saib daim duab 8.1), uas yog qhov chaw ntawm rRNA transcription thiab ua, thiab ntawm ribosome los ua ke. … Lub nucleolus yog a ribosome ntau lawm Hoobkas, tsim los ua kom tiav qhov kev xav tau ntawm cov khoom loj ntawm rRNAs thiab sib dhos ntawm cov ribosomal subunits.
ribosomes nyob qhov twg?
Cov proteins thiab nucleic acids uas tsim cov ribosome sub-units yog tsim nyob rau hauv cov nucleolus thiab xa tawm los ntawm nuclear pores rau hauv cytoplasm.
Lub luag haujlwm ntawm nucleolus yog dab tsi?
Lub nucleolus yog qhov loj tshaj plaws thiab tseem ceeb tshaj plaws nyob rau hauv eukaryotic interphase cell nucleus. … Lub nucleolus yog ib tug dynamic membrane-tsawg qauv uas nws lub luag hauj lwm yog ribosomal RNA (rRNA) synthesis thiab ribosome biogenesis.
Nucleolus tsim dab tsi thiab vim li cas?
Nucleolus ua ribosomal subunits los ntawm cov proteins thiab ribosomal RNA, tseem hu ua rRNA. Tom qab ntawd nws xa cov subunits tawm mus rau lwm lub cell uas lawv sib xyaw ua tiav ribosomes. Ribosomes ua cov protein; Yog li ntawd, lub nucleolus ua lub luag haujlwm tseem ceeb hauv kev tsim cov proteins hauv cell.
ribosomes ua los ntawm dab tsi?
ribosome yog ib qho nyuaj molecule ua los ntawm ribosomal RNA molecules thiab proteins uas tsim lub Hoobkas rau cov protein synthesis hauv hlwb. Xyoo 1955, George E. Palade tau tshawb pom ribosomes thiab piav qhia tias lawv yog cov khoom me me hauv cytoplasm uas nyiam cuam tshuam nrog endoplasmic reticulum membrane.
