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Video: Dab tsi yog apoptosis hauv biology?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Apoptosis yog ib daim ntawv ntawm kev tuag ntawm tes, lossis "kev tua tus kheej ntawm tes." Nws txawv ntawm necrosis, uas cov hlwb tuag vim raug mob. Apoptosis tshem tawm cov cell thaum tsim kho, tshem tawm cov qog nqaij hlav cancer thiab kab mob, thiab tswj kev sib npaug hauv lub cev.
Qhov tseeb, dab tsi yog apoptosis thiab nws lub hom phiaj yog dab tsi?
Apoptosis : Ib daim ntawv ntawm kev tuag ntawm tes uas qhov txheej txheem txheej txheem txheej txheem ua rau tshem tawm cov cell yam tsis tso cov tshuaj phem rau hauv ib puag ncig. Apoptosis ua lub luag haujlwm tseem ceeb hauv kev txhim kho thiab tswj kev noj qab haus huv ntawm lub cev los ntawm kev tshem tawm cov cell qub, cov cell tsis tsim nyog, thiab cov cell tsis zoo.
Ib yam nkaus, muaj dab tsi tshwm sim thaum apoptosis? Thaum lub sij hawm apoptosis , lub xovtooj ntawm tes me me thiab rub tawm ntawm nws cov neeg nyob ze. Tom qab ntawd cov nplaim ntawm lub xov tooj zoo li rhaub, nrog cov tawg tawg tawg thiab khiav tawm zoo li npuas los ntawm lub lauj kaub dej kub. DNA nyob hauv lub cell cov nucleus ua ke thiab tawg rau hauv qhov sib npaug sib luag.
Kuj nug, dab tsi yog lub ntsiab lus ntawm apoptosis hauv biology?
πόπτωσις "ntog tawm") yog daim ntawv ntawm cov phiaj xwm kev tuag ntawm tes uas tshwm sim hauv ntau yam kab mob sib kis. Cov txheej txheem biochemical ua rau cov yam ntxwv ntawm tes hloov pauv (morphology) thiab tuag. Qhov nruab nrab tib neeg laus poob ntawm 50 thiab 70 txhiab lub cell txhua hnub vim yog apoptosis.
Qee qhov piv txwv ntawm apoptosis yog dab tsi?
Cov phiaj xwm kev tuag ntawm tes yog xav tau rau kev txhim kho kom zoo ib yam li mitosis. Piv txwv : Kev rov ua dua ntawm tus tadpole tail thaum lub sijhawm nws hloov pauv mus rau hauv qav tshwm sim los ntawm apoptosis . Kev tsim cov ntiv tes thiab ntiv taw ntawm tus menyuam hauv plab xav tau kev tshem tawm, los ntawm apoptosis , ntawm cov ntaub so ntswg nruab nrab ntawm lawv.
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