Cov txheej txheem:
- Dab tsi yog ribosome khi rau hauv kev txhais lus?
- Yuav ua li cas khi rau dab tsi hauv kev txhais lus?
- Qhov twg ribosomes khi rau mRNA thaum lub sijhawm txhais lus?
- ribosomes khi nyob rau hauv lub cell nyob qhov twg?
Video: Lub sijhawm txhais lus ribosome khi rau?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Thaum lub sijhawm txhais lus, ribosomal subunits sib sau ua ke zoo li lub qhaub cij ntawm mRNA strand, qhov chaw uas lawv txuas ntxiv mus nyiam tRNA molecules tethered rau amino acids (circles) Cov saw ntev ntawm cov amino acids tshwm sim raws li lub ribosome txiav txim lub mRNA ib theem zuj zus mus rau hauv ib tug polypeptide, los yog ib tug tshiab protein.
Dab tsi yog ribosome khi rau hauv kev txhais lus?
Thaum pib, lub me me ribosomal subunit khi rau pib ntawm mRNA sequence Ces hloov RNA (tRNA) molecule nqa cov amino acid methionine khi rau qhov hu ua pib. codon ntawm mRNA sequence. Pib codon nyob rau hauv tag nrho cov mRNA molecules muaj cov kab ke AUG thiab cov lej rau methionine.
Yuav ua li cas khi rau dab tsi hauv kev txhais lus?
Cov kauj ruam hauv kev txhais lus yog:
The ribosome khi rau mRNA ntawm thaj chaw tshwj xeeb. Lub ribosome pib txuam tRNA anticodon sequences rau mRNA codon sequence. Txhua zaus ib lub tRNA tshiab los rau hauv lub ribosome, cov amino acid uas nws tau nqa tau ntxiv rau cov elongating polypeptide saw.
Qhov twg ribosomes khi rau mRNA thaum lub sijhawm txhais lus?
Thaum pib ntawm kev txhais lus, ribosome thiab tRNA txuas rau mRNA. Lub tRNA nyob hauv ribosome thawj qhov chaw docking. Qhov no tRNA anticodon yog ntxiv rau mRNA qhov pib codon, qhov twg pib txhais lus.
ribosomes khi nyob rau hauv lub cell nyob qhov twg?
Ribosomes pom 'dawb' hauv cytoplasm lossis khi mus rau endoplasmic reticulum (ER) los tsim ER. Nyob rau hauv ib tug mammalian cell yuav muaj li 10 lab ribosomes. Ob peb ribosomes tuaj yeem txuas rau tib lub mRNA strand, cov qauv no hu ua polysome.
Pom zoo:
Lub sijhawm khoom xa tuaj rau lub sijhawm twg?
Ib lub sij hawm cov khoom muag yog ib qho daim ntawv ntawm cov khoom lag luam tus nqi ntawm cov khoom muag khoom muag cov khoom lag luam tus nqi yog cov nyiaj tau los cuam tshuam nrog cov khoom hauv cov khoom muag thaum kawg ntawm lub sij hawm ua lag luamTus nqi yog raws li cov nqi tshwm sim kom tau txais cov khoom muag thiab tau npaj rau kev muag khoom.
Puas yog sijhawm sijhawm lossis sijhawm sijhawm?
Raws lub npe qhov txawv ntawm sijhawm sijhawm thiab sijhawm sijhawm yog qhov sijhawm sijhawm yog lub sijhawm ua raws sijhawm thaum sijhawm sijhawm yog sijhawm sijhawm; qhov tseeb . Puas yog lub sijhawm sijhawm ib lo lus? adj. 1. Ua los yog tuaj txog raws li lub sijhawm teem tseg;
Lub sijhawm twg tuaj yeem ua rau lub sijhawm poob qis?
Txawm hais tias tus tswv tsev yuav muaj tsawg kawg yog 6 xyoo txij li qhov kawg ntawm daim ntawv cog lus kom pib qhov kev thov kom poob qis, Txoj Cai Dilapidations qhia tias Lub Sijhawm Dilapidations thiab Quantified Demand yuav tsum tau ua haujlwm hauv 56 hnub kawg ntawm daim ntawv xauj tsev Thaum twg koj tuaj yeem ua haujlwm rau lub sijhawm luv luv ntawm kev puas tsuaj?
Lub sijhawm hemodialysis txhais li cas rau lub luag haujlwm ntawm lub raum?
Thaum lub raum tsis ua haujlwm zoo, cov khoom pov tseg thiab cov kua dej tsim hauv cov ntshav. Dialysis yuav siv sij hawm dhau ib feem ntawm txoj haujlwm ntawm lub raum tsis ua haujlwm kom tshem tawm cov kua dej thiab pov tseg . Lub luag haujlwm ntawm lub raum hauv tib neeg lub cev yog dab tsi yog hemodialysis?
Lub sijhawm txhais lus elongation txuas ntxiv mus txog thaum lub ribosome?
Thaum lub sijhawm elongation, lub ribosome txuas ntxiv txhais txhua codon nyob rau hauv lem. Txhua tus sib raug zoo amino acid yog ntxiv rau cov saw loj hlob thiab txuas ntawm daim ntawv cog lus hu ua peptide daim ntawv cog lus. Elongation txuas ntxiv mus txog thaum tag nrho cov codons tau nyeem … Cov protein tshiab raug tso tawm, thiab cov kev txhais lus sib txawv tuaj .
