Qhov ntxhib endoplasmic reticulum nyob qhov twg?
Qhov ntxhib endoplasmic reticulum nyob qhov twg?

Video: Qhov ntxhib endoplasmic reticulum nyob qhov twg?

Video: Qhov ntxhib endoplasmic reticulum nyob qhov twg?
Video: Endoplasmic reticulum and Golgi bodies | Biology | Khan Academy 2024, Lub rau hli ntuj
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Raug ER tau pom thoob plaws ntawm tes tab sis qhov ntom tau siab dua nyob ze ntawm lub hauv paus thiab cov cuab yeej Golgi. Ribosomes nyob rau hauv ntxhib endoplasmic reticulum raug hu ua 'membrane bound' thiab yog lub luag haujlwm rau sib sau ua ke ntawm ntau cov protein. Txoj kev no hu ua kev txhais lus.

Hais txog qhov no, yog vim li cas ntxhib ER nyob ze rau lub nucleus?

Qhov sib thooj ntawm raws ER mus rau lub cell cev muab lub ER tshwj xeeb tswj kev ua cov protein. Cov raws ER muaj peev xwm xa cov teeb liab mus rau sai cev thaum muaj teeb meem hauv kev sib xyaw protein thiab quav tshwm sim thiab yog li cuam tshuam tag nrho tus nqi ntawm kev txhais cov protein.

Tsis tas li, qhov chaw du ntawm endoplasmic reticulum nyob qhov twg? Cov du endoplasmic reticulum zoo li ntxhib endoplasmic reticulum yog txuas nrog lub hnab ntawv nuclear. Cov du endoplasmic reticulum muaj cov raj zoo li tus qauv nyob ze ntawm lub xov tooj ntawm tes. Cov tubules lossis cov hlab no qee zaum ceg tsim ua lub network uas zoo li lub ntsej muag.

Qhov tseeb, dab tsi yog qhov ntxhib endoplasmic reticulum muaj nuj nqi?

Rough endoplasmic reticulum yog organelle pom nyob hauv cov hlwb eukaryotic. Nws lub luag haujlwm tseem ceeb yog tsim khoom cov protein . Nws yog tsim los ntawm cisternae, tubules thiab vesicles. Lub cisternae yog ua los ntawm cov flattened membrane disks, uas tau koom nrog hauv kev hloov kho ntawm cov protein.

Puas yog qhov ntxeev endoplasmic reticulum pom hauv cov nroj tsuag lossis tsiaj txhu?

Cov ntxhib endoplasmic reticulum (RER) yog tam sim no hauv ob qho tib si cog thiab tsiaj hlwb . Nws ua lub luag haujlwm hauv kev tsim cov protein thiab ua haujlwm. Nws hu ua " ntxhib "Vim tias muaj cov membrane sib khi ribosomes ntawm nws saum npoo. RER yog tam sim no thoob plaws hauv ntawm tes tab sis qhov ntom ntom siab tshaj plaws nyob ze ntawm lub cev thiab lub cev golgi.

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