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Video: Hom kev faib cell twg yog siv los hloov cov cell qub?
![Video: Hom kev faib cell twg yog siv los hloov cov cell qub? Video: Hom kev faib cell twg yog siv los hloov cov cell qub?](https://i.ytimg.com/vi/N7OsDLxOXiw/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cell faib thiab qia hlwb. Cells faib los ntawm mitosis cov tsos mob rau kev loj hlob thiab kho.
Dhau li ntawm no, dab tsi yog qhov sib txawv ntawm kev faib cell?
Muaj ob hom kev faib cell : mitosis thiab meiosis. Feem ntau ntawm cov sij hawm thaum tib neeg xa mus rau " cell faib , "Lawv txhais tau tias mitosis, txheej txheem ntawm kev tsim lub cev tshiab hlwb . Meiosis yog tus hom kev faib cell uas tsim qe thiab phev hlwb.
Tsis tas li ntawd, muaj pes tsawg lub hlwb raug tsim los ntawm mitosis? Mitosis thiab meiosis, tom qab ntawd, yog cov txheej txheem zoo sib xws, tab sis ua rau muaj ntau hom sib txawv ntawm cov cell. Daim duab 1. A) Hauv mitosis, ib lub xov tooj ntawm tes (lub voj voog ntawm sab laug) faib los ua ob cov ntxhais. Cov hlwb no loj tuaj, thiab tom qab ntawd faib ua plaub pawg.
Tsis tas li ntawd, mitosis hloov pauv cov cell puas?
Genetic stability- Mitosis pab hauv kev faib cov chromosomes thaum lub sijhawm ntawm tes faib thiab tsim ob tug ntxhais tshiab hlwb . Mitosis pab nyob rau hauv zus tau tej cov zoo tib yam luam ntawm hlwb thiab yog li pab kho qhov puas lawm cov ntaub so ntswg los yog hloov qhov ua tsis taus pa hlwb.
Lub cev txoj hauv kev hloov cov cell tuag lossis puas?
Thaum twg hlwb ua puas lawm hauv ib qho txoj kev los yog tuag, cov lub cev tsim tawm tshiab cell los hloov lawv. Cov txheej txheem no hu ua ntawm tes faib. Ib ntawm tes muab ob npaug los faib ua ob.
Pom zoo:
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Hauv cov xwm txheej no, lub cev tiv thaiv kab mob siv kev tiv thaiv kab mob ntawm tes los rhuav tshem cov kab mob hauv lub cev. T cells yog lub luag haujlwm rau kev tiv thaiv kab mob hauv nruab nrab ntawm tes. Killer T cells (cytotoxic T cells) pab tshem tawm cov kab mob hauv lub cev los ntawm kev tso cov co toxins rau hauv lawv thiab txhawb apoptosis
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Lub sijhawm tshem tawm cov khoom siv txawv teb chaws thiab tuag los yog cov ntaub so ntswg kis los ntawm tus kab mob los yog raug mob kom txog thaum cov nqaij mos noj qab nyob zoo raug nthuav tawm?
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Osteoarthritis feem ntau cuam tshuam rau txhais tes, qis nraub qaum, caj dab, thiab hnyav sib koom tes xws li hauv caug, lub duav, thiab ko taw