Video: Cell puas tuaj yeem nyob tsis muaj nucleus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov nucleus tswj cov haujlwm niaj hnub ntawm cov cell . Organelles xav tau cov lus qhia los ntawm nucleus . Tsis muaj ib nucleus , cov cell tsis tuaj yeem tau txais yam nws xav tau ciaj sia thiab vam meej. A cell tsis muaj DNA tsis muaj peev xwm ua tau ua ntau yam uas tsis yog nws ib txoj haujlwm.
Tib neeg kuj nug, yuav ua li cas tsis muaj lub nucleus?
Nucleus yog lub hlwb ntawm tes thiab tswj feem ntau ntawm nws cov haujlwm. Yog li tsis muaj ib nucleus , ananimal cell los yog eukaryotic cell yuav tuag. Tsis muaj ib nucleus , lub cell yuav tsis paub yuav ua li cas thiab muaj yuav yuav tsis muaj cell faib. Protein synthesis yuav txawm tias tso tseg lossis tsis raug cov protein yuav ua tau zoo.
Ib yam li ntawd, cov hlwb uas tsis muaj nucleus yog dab tsi? Ib txhia hlwb tsis txhob. Prokaryotic hlwb (zoo li cov kab mob) yooj yim heev hlwb . Lawv tsis muaj ib nucleus , tej zaum hu ua lub chaw tswj ntawm lub cell . Inprokaryotic (PRO-care-ee-ought-ick) hlwb , cov geneticmaterial lossis DNA yog xoob sab hauv thiab yog ua los ntawm ib lub voj voog.
Ib yam li ntawd ib tug yuav nug, yog vim li cas lub cell tsis muaj sia nyob tsis muaj lub nucleus?
Tag nrho cov RNAs xav tau rau cov cell yog synthesisedin cov nucleus . Lub nucleolus nyob rau hauv lub nucleus isthe site for RNA synthesis as well as DNA replication. Ib eukaryotic cell ua tsis tau ciaj sia tsis muaj ib nucleus thiab diesintantly. (Muaj kev zam zoo li erythrocytes uas onmaturity poob lawv nucleus ).
Koj puas tuaj yeem nyob tsis muaj DNA?
Tsis muaj lub nucleus, lub cell tsis tuaj yeem tau txais yam nws xav tau kom muaj sia nyob thiab vam meej. Ib lub cell tsis muaj DNA tsis muaj peev xwm ua ntau yam uas tsis yog nws ib ua haujlwm. Cov kab mob muaj sia nyob yog nyob ntawm cov noob hauv DNA ua kom cov protein thiab enzymes. Txawm tias thaum xub thawj lub neej cov ntawv muaj DNA los yog RNA.
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