2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Molecules ntawm rRNA yog synthesized nyob rau hauv thaj chaw tshwj xeeb ntawm lub cell nucleus hu ua nucleolus, uas tshwm sim raws li thaj chaw ntom ntom hauv lub nucleus thiab muaj cov noob uas encode rRNA.
mRNA tRNA thiab rRNA synthesized nyob qhov twg?
Nyob rau hauv eukaryotes, pre-rRNAs yog transcribed, tiav, thiab sib sau ua ke rau hauv ribosomes nyob rau hauv lub nucleolus, thaum pre-tRNAs yog transcribed thiab ua nyob rau hauv lub nucleus thiab ces tso rau hauv lub cytoplasm qhov twg lawv txuas rau dawb amino acids rau protein synthesis.
Qhov chaw ntawm kev sib txuas ntawm ribosomal RNA yog dab tsi?
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.
ribosomal proteins nyob qhov twg?
Ribosomal proteins, zoo li lwm cov proteins, yog synthesized nyob rau hauv lub cytoplasm.
YPuas RNA synthesized hauv nucleolus?
Cov RNAs, zoo li lwm tus xa xov RNAs, yog tsim nyob rau hauv lub nucleus, tab sis ribosomal RNAs yog tsim nyob rau hauv nucleolusuas yog ib feem ntawm lub cell nucleus.
Pom zoo:
Kev tsis ncaj ncees nyob qhov twg yog qhov hem rau kev ncaj ncees nyob txhua qhov chaw?
Martin Luther King tau hais tias: “Kev tsis ncaj ncees nyob txhua qhov chaw yog kev hem thawj rau kev ncaj ncees nyob txhua qhov chaw. Peb raug ntes nyob rau hauv ib tug inescapable network ntawm kev sib nrig sib pab, khi nyob rau hauv ib lub tsoos tsho ntawm txoj hmoo.
Qhov twg yog qhov tsis txaus ntseeg nyob qhov twg?
Yuav muaj ob lub cev tsis zoo nyob rau hauv lub midbrain. Lawv yog symmetrically positioned, ib tug nyob rau ntawm ob sab ntawm lub midline ntawm lub hlwb, thiab lawv tsim ob lub pob nyob rau hauv lub posterior nto ntawm lub paj hlwb nyob rau hauv qab ntawm lub superior colliculi.
Qhov twg tag nrho cov nqi hluav taws xob nyob ntawm qhov kev siv nyiaj siab tshaj plaws yog qhov twg?
marginal utility is zero. Tag nrho cov nqi hluav taws xob yog siab tshaj thaum marginal utility yog xoom. Qhov no yog vim muaj ntau txoj cai ntawm kev txo qis marginal utility uas hais tias tus neeg siv khoom noj ntau thiab ntau qhov zoo, qhov ntxiv rau tag nrho cov nqi hluav taws xob poob.
Qhov twg ribosomes yog synthesized?
Ribosomal proteins yog synthesized nyob rau hauv lub cytoplasm thiab thauj mus rau lub nucleus rau subassembly nyob rau hauv lub nucleolus. Cov subunits raug xa rov qab mus rau cytoplasm rau kev sib dhos zaum kawg. ribosomes synthesized nyob rau hauv lub cell nyob qhov twg?
Thaum wohler synthesized urea nws dag qhov kev xav?
- Nyob rau xyoo 1828 tus kws tshuaj German Friedrich Wohler tau tsim cov urea artificially siv Silver isocyanate & ammonium chloride. - Qhov no yog thawj zaug uas cov organic tebchaw tau muab cov khoom tsim tawm. - Nws tau pab ua qhov cuav ntawm txoj kev xav ntawm vitalism vitalism 20th century Hans Driesch (1867–1941) txhais nws cov kev sim ua qhia tias lub neej tsis khiav los ntawm physicochemical txoj cai.
