Cov txheej txheem:
Video: Dab tsi yog cov organelles koom nrog hauv kev faib cell?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Centrioles - Organizing Chromosomes
Txhua tus tsiaj zoo li cell muaj ob qho me me organelles npe centrioles. Lawv nyob ntawd los pab cov cell thaum nws los txog rau lub sijhawm faib. Lawv raug muab tso rau hauv ob qho tib si txheej txheem ntawm mob mitosis thiab cov txheej txheem ntawm meiosis.
Hauv qhov no, plaub lub organelles hauv cell division yog dab tsi?
Organelles nyob rau hauv cov tsiaj hlwb muaj xws li cov nucleus , mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, thiab vacuoles.
Tsis tas li ntawd, yuav ua li cas tshwm sim rau cell organelles thaum lub sij hawm mitosis? Thaum a cell faib thaum lub sij hawm mitosis , ib co organelles muab faib ntawm ob tug ntxhais hlwb . Piv txwv li, mitochondria muaj peev xwm loj hlob thiab sib faib thaum lub interphase, yog li tus ntxhais hlwb txhua tus muaj mitochondria txaus. (Koj tuaj yeem nyeem ntxiv txog cell qhov chaw thiab organelles los ntawm nias ntawm no.)
Ntawm no, cov organelles twg koom nrog hauv kev faib cell piav qhia txhua yam ntawm lawv lub luag haujlwm?
Basic Cell Parts koom nrog hauv Mitosis
- Cell membrane. Lub luag haujlwm tseem ceeb yog tswj xyuas qhov nkag mus rau hauv thiab tawm ntawm lub cell.
- Nucleus. yog qhov chaw tswj ntawm lub cell.
- Centrioles. yog khub organelles uas nyob rau hauv lub cytoplasm tsuas yog koom nyob rau hauv cell division.
- Microtubules.
centrioles muaj nuj nqi yog dab tsi?
Lub ntsiab muaj nuj nqi ntawm centriole yog pab nrog kev faib cell hauv cov tsiaj hlwb. Cov cov centrioles pab tsim cov spindle fibers uas cais cov chromosomes thaum lub sij hawm cell division (mitosis). Celiogenesis tsuas yog tsim ntawm cilia thiab flagella nyob rau saum npoo ntawm cov hlwb.
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
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Dab tsi organelles koom nrog hauv protein synthesis?
Cell organelles uas koom rau hauv cov protein synthesis yog golgi lub cev, ribosomes thiab endoplasmic reticulum. Ribosomes synthesis proteins uas tau ntim los ntawm golgi lub cev thiab kis los ntawm endoplasmic reticulum. Lub ribosome yog ib tug complex molecule ua los ntawm ribosomal RNA molecules thiab lub luag hauj lwm rau protein synthesis