Cov hlwb dab tsi yog ncig?
Cov hlwb dab tsi yog ncig?

Video: Cov hlwb dab tsi yog ncig?

Video: Cov hlwb dab tsi yog ncig?
Video: Nkauj tawm tshiab _QHov twg los tau _ by Xim vaj & Xeeb vwj & xis nus vaj _ (2020 - 2021 ) 2024, Kaum ib hlis
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Eukaryotic hlwb Muaj ntau cov chromosomes uas dhau mus rau meiosis thiab mitosis thaum lub sijhawm cell faib, thaum feem ntau prokaryotic hlwb suav nrog ib leeg xwb ncig chromosome. Txawm li cas los xij, kev tshawb fawb tsis ntev los no tau pom tias qee cov prokaryotes muaj ntau li plaub kab lossis ncig chromosomes, raws li Nature Education.

Ntawm no, hom cell yog ncig?

Nroj tsuag hlwb feem ntau yog cov duab square thaum tsiaj hlwb feem ntau yog ncig . Nroj tsuag hlwb thiab tsiaj hlwb tau hloov pauv cov organelles sib txawv los ua haujlwm tshwj xeeb. Nroj tsuag hlwb muaj chloroplasts, a cell phab ntsa thiab lub hauv paus vacuole. Tsiaj hlwb tsis muaj peb organelles.

Ib yam li ntawd, puas yog txhua lub hlwb puas muaj cov nucleus? Tsis yog tag nrho cov cell muaj ib tug nucleus . Biology tawg cell hom rau hauv eukaryotic (cov uas muaj ib tug txhais nucleus ) thiab prokaryotic (cov uas tsis tau txhais nucleus ). Koj tuaj yeem muaj hnov txog chromatin thiab DNA. Yog koj tsis ua muaj ib txhais nucleus , koj DNA yog tej zaum ntab ncig ntawm cell nyob rau hauv ib cheeb tsam hu ua nucleoid.

Ntawm no, cov duab ntawm cov hlwb yog dab tsi?

Feem ntau cov cell morphologies yog cocci (spherical) thiab bacilli ( rods ). Coccibacillus yog ib qho kev sib xyaw ntawm ob qho tib si, thaum vibrio zoo li lub cim, spirilla yog zoo li lub helix (kauv, zoo li ib tug stretched-tawm Slinky), thiab spirochetes yog twisted zoo li ib tug ntsia hlau.

Vim li cas cov duab ntawm tes yog hexagonal hauv cellular network?

Hexagonal duab yog nyiam tshaj square los yog voj voog nyob rau hauv cellular architecture vim nws npog tag nrho cheeb tsam tsis sib tshooj. Nws yog vim nws xav tau tsawg dua hlwb sawv cev a hexagon tshaj daim duab peb sab los yog square. Lwm yam zoo ntawm hexagonal cellular system: Cov zaus rov siv dua tuaj yeem siv qhov no puab.

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