Video: Dab tsi yog 6 theem ntawm kev faib cell?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nws yog cov kab ke tsis tu ncua ntawm kev loj hlob thiab kev faib tawm uas cov hlwb hauv lawv lub neej. Muaj rau theem uas lub cell npaj los faib; interphase, prophase , metaphase , anaphase , telophase , thiab cytokinesis. Cov txheej txheem no hu ua..
Tsis tas li lo lus nug yog, dab tsi yog theem ntawm kev faib cell?
Cov txheej txheem mitosis faib muaj ob peb kauj ruam lossis theem ntawm lub voj voog ntawm tes-interphase, prophase , prometaphase, metaphase , anaphase , telophase , thiab cytokinesis -kom ua tiav cov hlwb tshiab diploid.
Ib sab saum toj no, 4 theem ntawm mitosis yog dab tsi? Mitosis tshwm sim hauv plaub theem, hu ua prophase , metaphase , anaphase , thiab telophase.
Yog li, yuav ua li cas tshwm sim hauv 6 theem ntawm mitosis?
Cov no theem tshwm sim nyob rau hauv nruj sequential kev txiav txim, thiab cytokinesis - cov txheej txheem ntawm faib cov ntsiab lus ntawm tes los ua ob lub hlwb tshiab - pib nyob rau hauv anaphase los yog telophase. Cov theem ntawm mitosis : prophase, metaphase, anaphase, telophase. Cytokinesis feem ntau sib tshooj nrog anaphase thiab / lossis telophase.
Dab tsi yog g0 ntawm cell voj voog?
Cov G0 theem (xa mus rau theem G xoom) lossis theem so yog lub sijhawm nyob hauv cell voj voog hauv qhov twg hlwb muaj nyob rau hauv lub xeev quiescent. G0 theem yog saib yog ib qho txuas ntxiv G1 theem, qhov twg cell tsis yog kev faib lossis npaj sib faib, lossis ib theem quiescent txawv uas tshwm sim sab nraum lub cell voj voog.
Pom zoo:
Yuav ua li cas cov txheej txheem ntawm cell faib nyob rau hauv eukaryotes feem ntau zoo ib yam li cell faib nyob rau hauv prokaryotes?
Tsis zoo li eukaryotes, prokaryotes (uas suav nrog cov kab mob) tau txais ib hom kev faib cell hu ua binary fission. Hauv qee qhov, cov txheej txheem no zoo ib yam li mitosis; Nws yuav tsum tau rov ua dua ntawm cov cell chromosomes, cais ntawm cov theej DNA, thiab kev sib cais ntawm niam txiv cell cytoplasm
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Cov xwm txheej no tuaj yeem muab faib ua ob qhov tseem ceeb: interphase (hauv nruab nrab ntawm kev sib faib theem ua pawg G1 theem, S theem, G2 theem), thaum lub xov tooj ntawm tes tsim thiab ua nrog nws cov haujlwm metabolic; mitotic theem (M mitosis), thaum lub sij hawm lub cell yog replicating nws tus kheej
Dab tsi yog theem ntawm Linnaean system ntawm kev faib tawm?
Niaj hnub nimno taxonomic classification system muaj yim theem tseem ceeb (los ntawm feem ntau suav nrog rau feem ntau tshwj xeeb): Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species Identifier
Ob theem ntawm kev faib cell hauv cov kab mob yog dab tsi?
Prokaryotes (cov kab mob) tau txais kev faib tawm ntawm cov cell hu ua binary fission, qhov twg lawv cov khoom siv caj ces raug cais sib npaug rau hauv ob lub hlwb. Thaum binary fission tej zaum yuav yog txoj kev faib los ntawm feem ntau prokaryotes, muaj lwm yam kev faib, xws li budding, uas tau pom