Cov txheej txheem:
- Cov molecule twg tseem nyob hauv lub nucleus thaum lub sij hawm eukaryotic protein synthesis?
- Cov molecule twg dhau los ntawm cov nucleus mus rau cytoplasm thiab qhia txog qhov sib lawv liag ntawm cov amino acids hauv cov polypeptide tshiab?
- Yuav ua li cas molecules cuam tshuam ncaj qha nrog protein synthesis?
- Yuav ua li cas thaum lub sij hawm tsim cov protein?
Video: Thaum lub sijhawm sib txuas ntawm cov protein hauv eukaryotes uas cov molecule dhau mus?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Messenger RNA (mRNA), molecule hauv cov hlwb uas nqa cov lej los ntawm DNA hauv cov nucleus mus rau qhov chaw ntawm cov protein synthesis hauv cytoplasm (cov ribosomes). Lub molecule uas nws thiaj li paub tias yog mRNA tau piav qhia thawj zaug hauv xyoo 1956 los ntawm cov kws tshawb fawb Elliot Volkin thiab Lazarus Astrachan.
Cov molecule twg tseem nyob hauv lub nucleus thaum lub sij hawm eukaryotic protein synthesis?
Cov molecule uas tseem nyob hauv lub nucleus thaum lub sij hawm tsim cov protein yog DNA DNA yog cov khoom siv caj ces ntawm tes thiab muaj tag nrho cov ntaub ntawv rau cov proteins uas lub cell xav tau. Thaum lub sij hawm thawj kauj ruam ntawm cov protein synthesis, hu ua transcription, DNA yog theej rau mRNA (messenger RNA).
Cov molecule twg dhau los ntawm cov nucleus mus rau cytoplasm thiab qhia txog qhov sib lawv liag ntawm cov amino acids hauv cov polypeptide tshiab?
Thaum lub sijhawm sib txuas ntawm cov protein hauv eukaryotes, cov molecule uas dhau los ntawm cov nucleus mus rau cytoplasm thiab qhia txog qhov sib lawv liag ntawm cov amino acids hauv cov polypeptide tshiab? the loj ribosomal subunit.
Yuav ua li cas molecules cuam tshuam ncaj qha nrog protein synthesis?
Nyob rau hauv lub ribosome, the rRNA molecules ncaj qha cov kauj ruam catalytic ntawm protein synthesis - lub stitching ua ke ntawm amino acids los ua ib tug protein molecule.
Yuav ua li cas thaum lub sij hawm tsim cov protein?
Protein synthesis yog txheej txheem uas cov hlwb ua cov protein. Nws tshwm sim hauv ob theem: transcription thiab translation … Kev txhais lus tshwm sim ntawm ribosome, uas muaj rRNA thiab cov proteins. Hauv kev txhais lus, cov lus qhia hauv mRNA raug nyeem, thiab tRNA coj qhov tseeb ntawm cov amino acids mus rau ribosome.
Pom zoo:
Dab tsi ntawm cov hauv qab no yog cov ntsiab lus ntawm kev sib txuas lus qauv ntawm de-escalation?
Lub Yim Hli Mloog. Kev mloog tso cai rau tus neeg npau taws "dej," uas yog txhais tau tias ua kom lub zog npau taws. … Acknowledge. Relaying tias koj nkag siab tias tus neeg lub ntsiab lus yog dab tsi los yog kev xav pab los ntawm kev lees paub lawv cov kev xav.
Lub polymer twg muaj kev sib txuas ntawm kev sib txuas?
Ntawm no, los ntawm cov kev xaiv muab Nylon-6, 6 yog cov polymer uas muaj kev sib txuas ntawm amide. Yog li, nylons tseem hu ua polyamides vim lawv cov yam ntxwv amide pawg hauv cov pob txha caj qaum. Amide pawg nyob rau hauv nylon molecules yog heev polar, thiab tsim hydrogen bonding ib leeg .
Thaum lub sijhawm tsim cov coke twg ntawm cov hauv qab no tau txais los ntawm cov khoom lag luam?
Coal tar: Nws tau los ua cov khoom lag luam hauv cov txheej txheem ntawm kev ua coke . Coke yog ib qho khoom los ntawm dab tsi? Cov lus tsis tsim nyog "coke" feem ntau yog hais txog cov khoom lag luam los ntawm qis-ash thiab qis-sulphur bituminous thee los ntawm txheej txheemhu ua coking.
Puas muaj cov kab mob uas muaj cov kab sib txuas sib txuas?
Cov leeg mob plawv yog ceg thiab muaj cov kab sib txuas, uas cov leeg pob txha tsis muaj . hom xovtooj twg muaj intercalated discs? Cov hlwb yog qhov tshwj xeeb, ntawm cov leeg nqaij, vim tias lawv tau txuas rau ib leeg los ntawm kev sib cuam tshuam discs - cov qauv uas tsuas pom muaj nyob hauv cov leeg mob plawv .
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 .
