Yuav ua li cas cov hlwb tsim thiab tso cov proteins?
Yuav ua li cas cov hlwb tsim thiab tso cov proteins?

Video: Yuav ua li cas cov hlwb tsim thiab tso cov proteins?

Video: Yuav ua li cas cov hlwb tsim thiab tso cov proteins?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Thaum lub cell xav tau ua ib protein ntau , 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. Lub tRNA yog ces tso tawm rov qab rau hauv cell thiab txuas mus rau lwm cov amino acid.

Hais txog qhov no, cov cell tsim cov protein nyob qhov twg?

Cov qauv pom nyob rau hauv cytoplasm, hu ua ribosomes, ua cov txheej txheem ntawm kev txhais lus. Nyeem cov mRNA cov nucleotides peb zaug ib zaug, cov qauv no sib sau ua ke ntawm cov amino acids, cov molecules uas ua nce cov proteins . Txhua nucleic acid triplet sib raug rau ib qho amino acid.

Ib yam li ntawd, puas yog txhua lub hlwb ua cov protein? Cov protein yog loj, complex molecules, uas tag nrho koj hlwb yog ua tsis tu ncua. Txhua protein ntau yog ua nce ntawm ntau cov amino acids uas yuav tsum tau koom ua ke hauv kev txiav txim kom raug protein ntau ua haujlwm kom raug.

Txog qhov no, yuav ua li cas cov proteins tsim thiab xa tawm los ntawm lub cell?

Ib zaug nyob rau hauv cytoplasm, mRNA tau txais kev txhais lus. Thaum txhais lus, RNA (mRNA, tRNA, thiab rRNA), ribosomes, thiab nucleic acids ua haujlwm ua ke los ua cov proteins . Ib zaug lub cov proteins yog ua viav protein ntau synthesis, lawv yuav tsum tau mus ua kom tiav los ua thawj, theem nrab, tertiary, lossis quaternary qauv.

DNA puas yog protein?

Tsis yog, DNA tsis yog a protein ntau . Qhov txawv yog lawv siv cov subunits sib txawv. DNA yog poly-nucleotide, protein ntau yog poly-peptide (peptide bonds txuas amino acids). DNA yog ib lub sijhawm ntev cov ntaub ntawv khaws cia, zoo li lub hard drive, thaum cov proteins yog cov tshuab molecular, zoo li neeg hlau caj npab.

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