Video: Dab tsi yog lo lus siv rau theem thaum lub cell faib?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv hlwb nrog ib tug nucleus, raws li nyob rau hauv eukaryotes, lub cell lub voj voog kuj yog faib rau hauv ob theem tseem ceeb: interphase thiab mitotic (M) theem (nrog rau mitosis thiab cytokinesis). Thaum lub sij hawm interphase, lub cell loj hlob, accumulating as-ham xav tau rau mitosis, thiab undergoes DNA replication npaj nws rau cell kev faib.
Hauv qhov no, dab tsi yog lub npe rau hauv nruab nrab ntawm theem hauv cell division?
Cov cell voj voog yog lub sij hawm los ntawm qhov pib ntawm ib qho cell faib mus rau qhov pib ntawm lub tom ntej. Qhov ntev tshaj plaws ntawm cov cell voj voog yog hu ua interphase. Interphase yog theem uas tshwm sim hauv ntawm kev faib cell . Thaum lub sij hawm interphase, lub cell loj hlob thiab txhim kho thiab ua nws txoj haujlwm.
Ib yam li ntawd, qhov twg hauv qab no tshwm sim thaum lub cell sib faib? Txhua tus ntxhais cell tau txais nws tus kheej daim qauv ntawm niam txiv cell cov DNA. Nws ua nyuaj rau cov cell kom tau txais cov pa oxygen thiab cov as-ham txaus.
Ntawm no, dab tsi yog theem ntawm cell division?
Cov mob mitosis kev faib cov txheej txheem 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.
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau ntawm tes hauv txhua theem?
Lub voj voog ntawm tes muaj ob theem loj: interphase thiab theem mitotic (Daim duab 1). Thaum interphase , cell loj hlob thiab DNA yog replicated. Thaum lub sij hawm mitotic theem, lub replicated DNA thiab cov ntsiab lus cytoplasmic tau sib cais, thiab cov cell faib.
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
Lub ntsiab lus ntawm lub hauv paus lo lus meter nyob rau hauv lo lus tus pas ntsuas kub yog dab tsi?
Lub hauv paus chiv keeb ntawm lo lus 'Thermometer' Qhov thib ob ntawm lo lus, 'meter', los ntawm Fabkis -mètre (uas muaj nws cov hauv paus hauv lub post-classical Latin: -meter, -metrumand lub ancient Greek, -Μέτρο ν, lossis metron, uas txhais tau tias ntsuas qee yam, xws li qhov ntev, qhov hnyav, lossis dav)
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
Ob theem ntawm kev faib tawm twg yog siv rau lub npe scientific ntawm lub cev?
Lub binomial nomenclature system muab ob lub npe rau hauv ib qho los muab txhua hom npe tshwj xeeb scientific. Thawj feem ntawm lub npe scientific hu ua genus. Qhov thib ob ntawm aspecies lub npe yog qhov tshwj xeeb epithet. Cov tsiaj kuj tau muab faib ua ntau dua ntawm kev faib tawm