Video: Dab tsi tshwm sim hauv S theem ntawm interphase?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov S theem ntawm ib lub voj voog ntawm tes tshwm sim thaum interphase , ua ntej mitosis los yog meiosis, thiab yog lub luag hauj lwm rau cov synthesis los yog replication ntawm DNA. Nyob rau hauv txoj kev no, cov khoom siv caj ces ntawm ib lub xovtooj yog ob npaug ua ntej nws nkag mus rau mitosis lossis meiosis, cia kom muaj DNA txaus los faib rau hauv cov menyuam ntxhais.
Ib yam li ntawd, dab tsi tshwm sim hauv S theem ntawm lub voj voog ntawm tes?
S theem . Hauv S theem , cov cell synthesizes ib daim qauv ntawm DNA hauv nws cov nucleus. Nws kuj tseem duplicates lub microtubule-organizing qauv hu ua centrosome. Cov centrosomes pab cais DNA thaum lub sij hawm M theem.
Tsis tas li ntawd, dab tsi tshwm sim hauv g2 theem ntawm interphase? Qhov kawg ntawm interphase yog hu ua G2 Phase . Lub cell tau loj hlob, DNA tau rov ua dua, thiab tam sim no lub xovtooj yuav luag npaj los faib. Qhov kawg no theem yog txhua yam hais txog kev npaj lub cell rau mitosis lossis meiosis. Thaum lub sij hawm G2 Phase , lub cell yuav tsum loj hlob ib co ntxiv thiab tsim tej molecules nws tseem yuav tsum tau faib.
Yog li ntawd, dab tsi tshwm sim tshwm sim thaum lub sij hawm S theem ntawm interphase?
Cov interphase Ib feem ntawm lub voj voog ntawm tes yog ntev heev piv rau mitosis. Interphase muaj peb theem : thawj qhov sib txawv (G1), synthesis ( S ) thiab qhov sib txawv thib ob (G2). Lub cell replicates DNA tsuas yog nyob rau hauv lub S theem . Ua ntej lub xovtooj ntawm tes tuaj yeem hloov ntawm G1 mus rau S , nws yuav tsum tshem G1 checkpoint.
Yuav ua li cas tshwm sim hauv g1 theem ntawm interphase?
Cov G1 Phase feem ntau hu ua kev loj hlob theem , vim qhov no yog lub sijhawm uas lub cell loj hlob. Lub sijhawm no theem , lub cell synthesizes ntau yam enzymes thiab cov as-ham uas xav tau tom qab rau DNA replication thiab cell division. Cov G1 Phase kuj yog thaum cov hlwb tsim cov protein ntau.
Pom zoo:
S sawv rau dab tsi thiab dab tsi tshwm sim hauv theem no?
S theem sawv rau 'Synthesis'. Qhov no yog theem thaum DNA replication tshwm sim. The G2 stage stands for 'GAP 2'
Ob theem tseem ceeb ntawm photosynthesis yog dab tsi thiab txhua theem tshwm sim nyob qhov twg?
Ob theem ntawm photosynthesis: Photosynthesis yuav siv sij hawm qhov chaw nyob rau hauv ob theem: lub teeb-dependent kev tshwm sim thiab lub Calvin voj voog (lub teeb-yooj yim kev xav). Lub teeb-nyob ntawm cov tshuaj tiv thaiv, uas tshwm sim hauv thylakoid daim nyias nyias, siv lub teeb lub zog los ua ATP thiab NADPH
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 tshwm sim hauv txhua theem ntawm mitosis?
Mitosis yog cov txheej txheem uas cov nucleus ntawm eukaryotic cell faib. Thaum lub sijhawm txheej txheem no, tus muam chromatids cais tawm ntawm ib leeg thiab txav mus rau cov ncej ntawm tes. Qhov no tshwm sim nyob rau hauv plaub theem, hu ua prophase, metaphase, anaphase, thiab telophase