Video: Puas yog RNA ua cov proteins?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ribosomal RNA (rRNA) koom nrog ib pawg ntawm cov proteins tsim ribosomes. Cov txheej txheem nyuaj no, uas lub cev txav mus raws ib qho mRNA molecule, catalyze lub sib dhos ntawm cov amino acids rau hauv protein ntau chains. Lawv kuj khi tRNAs thiab ntau yam khoom siv molecules tsim nyog rau protein ntau synthesis.
Tib neeg kuj nug, DNA thiab RNA ua cov protein li cas?
Ib qho protein yog ua los ntawm cov amino acids, daim ntawv no a txoj hlua. Thaum lub DNA tau sau rau hauv RNA , ib base DNA sib tham rau ib base RNA ,ib 1 rau 1 kev sib raug zoo tsis siv rau hauv kev txhais lus rau protein . Thaum lub sijhawm txhais lus no, 1 amino acid ntxiv rau tus protein ntau strand rau txhua 3 puag hauv lub RNA.
DNA puas ua RNA? Cov feem ntawm DNA uas tau muab sau rau hauv RNA hu ua "genes". Cells ua RNA lus nyob rau hauv ib tug txheej txheem zoo ib yam li cov replication ntawm DNA . Cov DNA strands yog rub sib nrug nyob rau hauv qhov chaw ntawm cov noob yuav transcribed, thiab enzymes tsim tus tub txib RNA los ntawm qhov sib lawv liag DNA bases siv lub hauv paus kev cai ua khub.
Yog li ntawd, hom RNA sib sau ua ke cov proteins li cas?
tRNA
Peb hom RNA yog dab tsi thiab lawv lub luag haujlwm hauv kev tsim cov protein ntau?
Peb hom RNA loj yog mRNA, los yog messenger RNA , uas yog cov ntawv luam ib ntus ntawm cov ntaub ntawv pom hauv DNA; rRNA, los yog ribosomal RNA , uas ua hauj lwm raws li structural Cheebtsam ntawm protein ntau - ua cov qauv hu ua ribosomes; thiab thaum kawg, tRNA, lossis hloov RNA , uas ferry amino acids rau ribosome yuav tsum tau sib sau ua ke
Pom zoo:
Yuav ua li cas cov hlwb tsim thiab tso cov proteins?
Thaum lub cell yuav tsum tau ua ib tug protein, mRNA yog tsim nyob rau hauv lub nucleus. Tom qab ntawd, mRNA raug xa tawm ntawm lub nucleus thiab mus rau ribosomes. Nrog rau mRNA muab cov lus qhia, ribosome txuas mus rau tRNA thiab rub tawm ib qho amino acid. Tom qab ntawd tRNA tso tawm rov qab rau hauv lub cell thiab txuas mus rau lwm cov amino acid
Puas yooj yim diffusion siv cov proteins channel?
Saib ze ze: Cov neeg nqa khoom yooj yim Diffusion Muaj ob hom kev sib koom ua ke ntawm cov neeg nqa khoom yooj yim: Channel proteins thauj tsuas yog dej lossis qee yam ions. Lawv ua li ntawd los ntawm kev tsim cov protein-lined passageway hla daim nyias nyias. Ntau cov dej molecules lossis ions tuaj yeem hla hauv ib cov ntaub ntawv los ntawm cov channel ntawm tus nqi nrawm heev
Vim li cas cov cell membrane yuav tsum tau thauj cov proteins?
Kev piav qhia: Lawv pab cov molecules thoob plaws hauv daim nyias nyias ntawm kev thauj mus los, ib txoj kev hu ua kom yooj yim diffusion. Cov proteins no yog lub luag haujlwm rau nqa ions thiab lwm cov molecules me rau hauv lub cell
Puas muaj cov proteins uas muaj peev xwm xav tau lub zog?
Active thauj cov cab kuj proteins xav tau lub zog txav cov tshuaj tiv thaiv lawv cov concentration gradient. Lub zog ntawd tuaj yeem tuaj rau hauv daim ntawv ntawm ATP uas yog siv los ntawm cov neeg nqa khoom protein ncaj qha, lossis siv lub zog los ntawm lwm qhov
Puas yog DNA thiab RNA koom nrog hauv cov txheej txheem ntawm cov protein synthesis quizlet?
Txheej txheem nyob rau hauv uas ib feem ntawm nucleotide ib theem zuj zus ntawm DNA yog theej mus rau hauv ib tug complementary sequence nyob rau hauv messenger RNA. Lub mRNA tuaj yeem tawm mus sab nraud ntawm lub nucleus thiab mus rau ribosomes. Cov txheej txheem uas cov ntaub ntawv genetic coded nyob rau hauv messenger RNA directs tsim ib tug tshwj xeeb protein ntawm ib tug ribosome nyob rau hauv lub cytoplasm