Dab tsi yog lub cev uas nws cov hlwb muaj lub nucleus?
Dab tsi yog lub cev uas nws cov hlwb muaj lub nucleus?

Video: Dab tsi yog lub cev uas nws cov hlwb muaj lub nucleus?

Video: Dab tsi yog lub cev uas nws cov hlwb muaj lub nucleus?
Video: yog hmoov dab tsi tub huas xyooj 2024, Kaum ib hlis
Anonim

eukaryotes. Eukaryotes yog cov kab mob uas nws cov hlwb muaj cov nucleus thiab lwm yam membrane-bound organelles. Muaj ntau hom eukaryotic kab mob , suav nrog tag nrho cov tsiaj, nroj tsuag, fungi, thiab protists, nrog rau feem ntau algae. Eukaryotes tuaj yeem yog ib leeg-celled lossis multicellular.

Tsis tas li ntawd, dab tsi yog lub cev uas nws lub cell tsis muaj nucleus?

procariote / procariote. Prokaryotes yog cov kab mob uas lawv cov hlwb tsis muaj nucleus thiab lwm yam organelles. Prokaryotes tau muab faib ua ob pawg: cov kab mob thiab cov archaea, uas cov kws tshawb fawb ntseeg tias muaj cov kab mob sib txawv.

Qhov thib ob, puas eukaryotic hlwb puas muaj cov nucleus? Hom ntawm Cells Eukaryotic hlwb muaj organelles ntawm daim nyias nyias, thaum prokaryotic cell ua tsis yog. Eukaryotic hlwb muaj cov nucleus uas muaj cov ntaub ntawv caj ces hu ua DNA, thaum prokaryotic cell ua tsis yog. Hauv prokaryotic hlwb , DNA tsuas yog ntab ib ncig ntawm lub cell.

Hais txog qhov no, puas hlwb prokaryotic puas muaj cov nucleus?

Kev faib nruab nrab prokaryotes thiab eukaryotes feem ntau suav hais tias yog qhov tseem ceeb tshaj plaws los yog qhov sib txawv ntawm cov kab mob. Qhov txawv yog tias eukaryotic hlwb muaj ib "true" nucleus muaj lawv DNA, hos prokaryotic cell ua tsis yog muaj nucleus . Prokaryotes tsis muaj mitochondria thiab chloroplasts.

Vim li cas ho tsis cov cell prokaryotic muaj cov nucleus?

Prokaryotes ua muaj lawv genomic DNA concentrated thiab localized mus rau ib cheeb tsam me me nyob rau hauv lub cell (lub cheeb tsam nucleoid). Yog li nws tsis yog kiag li hais tias prokaryotes tsis muaj nucleus . Txawm li cas los xij lawv tsis muaj 'qhov tseeb' nucleus uas yog membrane khi.

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