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Video: Dab tsi txwv cell size lab?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Qhov tseem ceeb txwv rau cell loj yog qhov txwv imposed los ntawm diffusion. Kev nthuav tawm yog txheej txheem qeeb heev. Yog ib ntawm tes yog 20 cm (~ 8 ntiv tes), nws yuav siv sijhawm ib hnub rau cov as -ham kom mus txog nws lub hauv paus lossis rau cov khoom pov tseg kom mus txog ntawm tes daim nyias nyias. Cov ntawm tes yuav tshaib plab sai sai los yog lom nws tus kheej nrog nws cov khoom pov tseg.
Xav txog qhov no, dab tsi txwv qhov loj ntawm tes?
Cell loj yog txwv los ntawm a cov cell thaj tsam thaj tsam rau ntim piv. Ib qho me me ntawm tes muaj txiaj ntsig zoo dua thiab thauj cov ntaub ntawv, suav nrog cov khoom pov tseg, ntau dua li qhov loj ntawm tes . Xovtooj tuaj nyob rau hauv ntau yam sib txawv. A cov cell kev ua haujlwm tau txiav txim siab, ib feem, los ntawm nws cov duab.
Ib tug kuj yuav nug, yog vim li cas hlwb thiaj li me me lab teb lo lus tseem ceeb? Teb thiab Piav: Xovtooj yog me me vim tias lawv yuav tsum tuav lub ntsej muag rau ntim sib piv uas tso cai rau nthuav tawm cov ntaub ntawv thoob plaws ntawm tes thiab
Kuj paub, dab tsi yog qhov tseem ceeb txwv rau cell loj?
Cov txwv txwv rau cov cell loj yog txwv imposed los ntawm diffusion. Kev nthuav tawm yog txheej txheem qeeb heev. Yog ib ntawm tes yog 20 cm (~ 8 ntiv tes), nws yuav siv sijhawm ib hnub rau cov as -ham kom mus txog nws lub hauv paus lossis rau cov khoom pov tseg kom mus txog ntawm tes daim nyias nyias. Cov ntawm tes yuav tshaib plab sai sai los yog lom nws tus kheej nrog nws cov khoom pov tseg.
Nws puas zoo dua rau lub cell kom loj lossis me?
Xovtooj tsawg heev, yog li lawv tuaj yeem ua kom lawv qhov sib piv ntawm thaj chaw saum npoo rau ntim. Cov hlwb me dua muaj qhov sib piv siab dua uas tso cai rau ntau cov lwg me me thiab ions txav mus los thoob plaws ntawm tes membrane ib chav ntawm cytoplasmic ntim. Xovtooj yog li ntawd me me vim tias lawv yuav tsum muaj peev xwm tau txais cov as-ham hauv thiab cov khib nyiab tawm sai.
Pom zoo:
Qhov sib txawv ntawm kev txwv thiab txwv tsis pub cov tub rog tshaj tawm yog dab tsi?
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Ib tus neeg raug tsim txom tuaj yeem xaiv los hloov Daim Ntawv Ceeb Toom Txwv rau Tsis Pub Txwv txhua lub sijhawm. Txawm li cas los xij, thaum ua Daim Ntawv Ceeb Toom Txwv Tsis Pub Leej Twg Ua, qhov txwv txwv tsis muaj ntxiv lawm. Rau Daim Ntawv Ceeb Toom Tsis Pub Txwv - Cov neeg raug tsim txom tuaj yeem nthuav tawm kev yuam deev rau cov neeg no:
Ob qho piv txwv piv txwv yog dab tsi?
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Hauv nws qhov kev txhais dav tshaj plaws, ua piv txwv tuaj yeem suav nrog cov qauv tsis nyob. Cov ntsiab lus tshwj xeeb masquerade thiab mimesis qee zaum siv thaum cov qauv tsis muaj sia. Piv txwv li, cov tsiaj xws li paj mantises, cov paj ntoo cog, cov paj ntoo thiab kab zauv kab npauj npaim kab ntsig zoo li cov ntoo, tawv ntoo, nplooj, nplooj noog poob lossis paj ntoo
Dab tsi txwv cell loj?
![Dab tsi txwv cell loj? Dab tsi txwv cell loj?](https://i.answers-medical.com/preview/medical-health/14001477-what-limits-cell-size-j.webp)
Cell loj yog txwv los ntawm ib lub xovtooj ntawm thaj tsam ntawm qhov chaw rau qhov ntim piv. Ib lub xovtooj me me muaj txiaj ntsig zoo dua thiab thauj cov ntaub ntawv, suav nrog cov khoom pov tseg, dua li lub xovtooj loj. Cov cell tuaj nyob rau ntau qhov sib txawv. Lub xov tooj ntawm tes ua haujlwm tau txiav txim siab, ib feem, los ntawm nws cov duab
Dab tsi yog txheej txheem uas cov cell yooj yim dhau los ua cov cell tshwj xeeb?
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Cell sib txawv yog li cas generic embryonic hlwb ua cov hlwb tshwj xeeb. Qhov no tshwm sim los ntawm cov txheej txheem hu ua noob qhia. Kev qhia cov noob yog kev sib xyaw tshwj xeeb ntawm cov noob uas tau qhib lossis tawm (qhia lossis thawb), thiab qhov no yog qhov qhia tias lub xov tooj ntawm tes ua haujlwm li cas
Dab tsi yog cov txheej txheem uas tsim ntau cov cell los ntawm ib lub cell?
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Lub cell tau txais ib hom kev faib cell hu ua mitosis. Hauv mitosis, ob lub hlwb hu ua tus ntxhais cell raug tsim, txhua qhov zoo ib yam rau niam txiv cell