Puas muaj kab mob DNA pom hauv cytosol?
Puas muaj kab mob DNA pom hauv cytosol?

Video: Puas muaj kab mob DNA pom hauv cytosol?

Video: Puas muaj kab mob DNA pom hauv cytosol?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Plaub Hlis Ntuj
Anonim

Cov kab mob DNA - ib ncig chromosome plusplasmids

Cov DNA ntawm feem ntau kab mob yog muaj nyob rau hauv ib lub voj voog molecule, hu ua lub kab mob chromosome. Qhov no zaum hauv lub cytoplasm ntawm kab mob cell. Ntxiv nrog rau cov chromosome, kab mob feem ntau muaj plasmids - me me ncig DNA molecules.

Ib yam li ntawd, cov kab mob puas muaj cytosol?

Hauv feem ntau kab mob Feem ntau intracellularstructure yog lub ribosome, qhov chaw ntawm protein synthesis nyob rau hauv tag nrho cov kab mob. Tag nrho cov prokaryotes muaj 70S (qhov twg S = Svedbergunits) ribosomes thaum eukaryotes muaj ntau dua 80S ribosomes hauv lawv cytosol.

Ib yam li ntawd, cov kab mob puas muaj capsid? Hais txog cov qauv, kab mob yog complex dua cov kab mob. Cov kab mob yog tsim los ntawm cov qauv protein hu ua a capsid . Txawm tias qhov no capsid muaj tus kab mob cov khoom siv, nws tsis muaj cov yam ntxwv ntawm lub cell tiag tiag, xws li cov phab ntsa ntawm tes, thauj cov proteins, cytoplasm, organelles, thiab sai sai.

Tib neeg kuj nug, qhov twg yog cov kab mob cell DNA pom?

Kab mob tsis muaj nucleus; lawv DNA yog pom hauv thaj tsam nucleoid. Ribosomes koom nrog hauv kev tsim cov polypeptides (proteins). Lub npe dab tsi yog muab rau cov qauv nruj, pom sab nraum lub plasma membrane, uas nyob ib puag ncig thiab txhawb nqa lub kab mob cell ?

Puas muaj cov kab mob cell muaj mitochondria?

Prokaryotes, ntawm qhov tod tes, yog ib leeg-celled kab mob xws li kab mob thiab archaea. Lawv kuj tsis muaj ntau cov kab mob hauv cov kab mob uas muaj nyob hauv eukaryotic hlwb Yog li, prokaryotes muaj tsis muaj mitochondria.

Pom zoo: