2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov ribosomes no ua cov proteins uas tau thauj los ntawm ER hauv cov hnab me me hu ua thauj vesicles. Cov hlwv thauj khoom pinch tawm ntawm qhov kawg ntawm ER. Qhov ntxhib endoplasmic reticulum ua haujlwm nrog Golgi apparatus txav tshiab cov proteins mus rau lawv qhov chaw zoo nyob hauv cell.
Ua raws li qhov xav tau, dab tsi thauj cov protein tawm ntawm lub cell?
Cov protein , nqa cov cim qhia ib ntus, raug thauj los ntawm qhov chaw endoplasmic recticulum, ntim rau hauv vesicles, mus rau golgi apparatus (los yog golgi complex lossis golgi lub cev). Tom qab ua tiav, cov no cov proteins yog excreted los ntawm cov cell los yog raug xa mus rau ntau qhov chaw hauv lub cell.
Ib yam li ntawd, dab tsi pob cov proteins hauv ib lub cell? Ntawm ntau qhov chaw ntawm a cell , Golgi apparatus ua txoj haujlwm no. Nws hloov thiab ntim cov protein thiab lipids ua nyob rau hauv cell , thiab xa lawv tawm mus rau qhov chaw lawv xav tau.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi nqa cov khoom tawm ntawm tes?
Cov Endoplasmic Reticulum yog ib lub network ntawm cov kwj dej membranous uas muaj cov kua dej. Lawv nqa cov khoom thoob plaws hauv lub cell. Lub ER yog "kev thauj mus los" ntawm lub xov tooj ntawm tes. Muaj ob hom ER: ntxhib ER thiab du ER.
Yuav ua li cas protein tawm ntawm lub cell?
Cov txheej txheem Golgi cov proteins ua los ntawm endoplasmic reticulum (ER) ua ntej xa lawv tawm mus rau cell . Cov protein nkag mus rau Golgi ntawm sab uas tig mus rau ER (cis sab), thiab tawm mus rau sab nraud ntawm pawg, ntsib lub plasma daim nyias nyias. cell (trans sab).
Pom zoo:
Dab tsi ntawm impurities tuaj yeem raug tshem tawm ntawm cov organic compound los ntawm distillation?
Ua haujlwm kom raug, distillation tuaj yeem tshem tawm txog 99.5 feem pua ntawm cov impurities ntawm dej, suav nrog cov kab mob, hlau, nitrate, thiab cov khoom tawg
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 thauj cov khoom tawm ntawm lub cell?
Endoplasmic Reticulum yog lub network ntawm cov kwj dej membranous uas muaj cov kua dej. Lawv nqa cov khoom thoob plaws hauv lub cell. ER yog 'kev thauj mus los' ntawm lub xov tooj ntawm tes
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
Cov tshuaj dab tsi tuaj yeem txav mus rau hauv lossis tawm ntawm cov hlwb los ntawm kev nthuav tawm?
Dej, carbon dioxide, thiab oxygen yog ib qho ntawm ob peb yam yooj yim molecules uas muaj peev xwm hla lub cell membrane los ntawm diffusion (los yog ib hom diffusion hu ua osmosis). Diffusion yog ib txoj hauv kev ntawm kev txav ntawm cov khoom nyob rau hauv cov hlwb, nrog rau txoj kev rau cov me me molecules tseem ceeb hla lub cell membrane