Video: Yuav ua li cas cov protein nyob sab nraud ntawm tes ua rau muaj xwm txheej tshwm sim hauv lub cell?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A protein tau dhau ntawm daim nyias nyias thiab mus rau hauv lub cell , ua rau teeb liab hauv cell . b. A protein nyob rau hauv lub cell khi rau ib tug receptor protein ntau ntawm cell nto, ua rau nws hloov cov duab thiab xa cov teeb liab hauv cell . Phosphorylation hloov cov duab ntawm tus protein ntau , feem ntau activating nws.
Raws li txoj cai, Phosphorylating cov protein muaj txiaj ntsig dab tsi ntawm cov ntawv xeem protein?
Phosphorylation hloov cov duab ntawm lub protein ntau , feem ntau activating nws. Protein phosphorylation ua rau muaj kev hloov pauv hauv cov phosphorylated protein . Cov duab hloov tau tshwm sim los ntawm kev sib cuam tshuam ntawm cov pab pawg tshiab phosphate nrog them los yog polar amino acids ntawm protein ntau ua phosphorylated.
Tsis tas li ntawd, dab tsi tshwm sim thaum lub sij hawm prophase? Chromosomes pom, cov nucleolus ploj, cov ntaub ntawv mitotic spindle, thiab lub hnab ntawv nuclear ploj.
- Chromosomes ua ntau coiled thiab tuaj yeem pom nyob rau hauv lub teeb pom kev zoo.
- Txhua tus chromosome duplicated yog pom raws li ib khub niam txiv chromatids koom los ntawm cov duplicated tab sis unseparated centromere.
Tsis tas li ntawd, lub voj voog ntawm tes yuav cuam tshuam dab tsi hauv lub xov tooj ntawm tes uas tsim cov cohesin protein hloov pauv?
Yog cohesin tsis ua haujlwm, chromosomes tsis tau ntim tom qab DNA replication nyob rau hauv S theem ntawm interphase. Nws yog qhov zoo li qhov cov proteins ntawm thaj tsam centromeric, xws li kinetochore, yuav tsis form.
Dab tsi MPF ua rau cov haujlwm tshwj xeeb uas nws ua rau?
MPF ua rau cov cell txoj kev dhau los tus G2 checkpoint mus rau theem M. Kev loj hlob zoo yog ib qho protein tso tawm los ntawm meej cov hlwb uas txhawb nqa lwm cov hlwb kom sib 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
Yuav ua li cas cov xwm txheej yuav tsum tau induce ib tug tam sim no nyob rau hauv ib lub voj ntawm hlau?
Hypothesis: Yuav kom induce ib tug tam sim no nyob rau hauv ib lub voj ntawm hlau, tej yam kev mob yuav tsum tau hais tias muaj ib tug magnetic teb. Qhov no yog vim hais tias thaum ib tug conductor txav los ntawm ib tug magnetic teb, ib tug induced tam sim no yog tsim
Lub organelle twg ua haujlwm raws li qhov chaw xa ntawv ntawm lub xov tooj ntawm tes txheeb cov proteins thiab xa lawv mus rau lawv qhov chaw xav tau sab hauv lossis sab nraud ntawm tes?
Golgi Hais txog qhov no, dab tsi organelle yog lub luag haujlwm rau kev thauj mus los? endoplasmic reticulum (ER Qhov thib ob, cov proteins txav mus los ntawm lub cell li cas? Cov proteins txav mus los endomembrane system thiab raug xa tawm los ntawm lub ntsej muag trans ntawm Golgi apparatus nyob rau hauv thauj vesicles uas txav mus los cytoplasm thiab tom qab ntawd fuse nrog plasma membrane tso tawm protein ntau mus rau sab nraum lub cell .
Vim li cas nws thiaj li hais tias lub Orthocenter ntawm daim duab peb sab obtuse yuav tsum nyob rau sab nraud ntawm daim duab peb sab?
Nws hloov tawm tias tag nrho peb qhov siab ib txwm sib tshuam ntawm tib lub ntsiab lus - lub npe hu ua orthocenter ntawm daim duab peb sab. Lub orthocenter tsis yog ib txwm nyob hauv daim duab peb sab. Yog tias daim duab peb sab yog obtuse, nws yuav nyob sab nraud. Txhawm rau ua kom qhov no tshwm sim cov kab qhov siab yuav tsum tau txuas ntxiv kom lawv hla
Yuav ua li cas oxygen tshwm sim hauv xwm piav qhia txog lub voj voog oxygen hauv qhov xwm txheej?
Piav lub voj voog oxygen hauv qhov xwm txheej. Oxygen muaj nyob rau hauv ob hom sib txawv hauv qhov xwm txheej. Cov ntaub ntawv no tshwm sim raws li cov pa roj carbon monoxide 21% thiab ua ke hauv daim ntawv oxides ntawm hlau thiab nonmetals, nyob rau hauv lub ntiaj teb crust, cua thiab dej. Oxygen rov qab mus rau qhov chaw los ntawm cov txheej txheem hu ua photosynthesis