Smooth vs Rough Endoplasmic Reticulum | SER vs RER
Cell yog lub luag haujlwm tseem ceeb ntawm lub neej, thiab nws muaj ob peb lub cev nyob hauv. Endoplasmic reticulum yog ib qho ntawm cov qauv tseem ceeb hauv lub cell, thiab muaj ob hom loj ntawm nws lub npe hu ua du thiab ntxhib. Endoplasmic reticulum feem ntau abbreviated li ER; li no, hom du yog denoted li SER thiab hom ntxhib yog symbolized li RER. Muaj qhov sib txawv ntawm cov qauv thiab kev ua haujlwm ntawm ob hom no thiab, kab lus no qhia txog feem ntau ntawm cov.
Smooth Endoplasmic Reticulum
Smooth endoplasmic reticulum (SER) yog lub npe vim nws du nto. Qhov saum npoo yog du vim tsis muaj ribosomes. Tus qauv ntawm SER yog ib tug branching network ntawm tubules thiab vesicles. Cov qauv kev sib txuas lus no yog qhov tseem ceeb los pab txhawb cov proteins uas tau tsim los tshiab kom muab tais kom raug. Tsis tas li ntawd, nws pab tswj kom muaj qhov ntim ntawm lub cell ntawm ib theem.
Feem ntau, qhov chaw uas SER feem ntau pom yog nyob ze rau lub hnab ntawv nuclear. SER ua lub luag haujlwm tseem ceeb hauv ntau cov txheej txheem hauv cellular metabolic hauv ib lub xovtooj ntawm tes xws li lipid thiab steroid synthesis, carbohydrate tawg, thiab tswj cov qib calcium. Tsis tas li ntawd, detoxification ntawm cov tshuaj thiab steroid metabolism kuj tau ua nrog SER hauv cov hlwb. SER pab cov kev ua haujlwm ntawm tes xws li gluconeogenesis nrog lub xub ntiag ntawm glucose-6-phosphatase enzyme. Cov qauv hauv lub network muab qhov chaw ntxiv rau khaws cia thiab ua rau muaj qee yam enzymes tseem ceeb. Cov khoom ntawm cov txheej txheem no tseem khaws cia hauv SER cov qauv. SER tau raug pov thawj rau nws qhov tseem ceeb los txuas cov receptors ntawm cov proteins hauv cell membrane. Tsis tas li ntawd, SER ua haujlwm txawv nyob ntawm seb cov ntaub so ntswg, tab sis cov haujlwm saum toj no tau hais tseg yog ib txwm nyob rau ntau lub sijhawm.
Rough Endoplasmic Reticulum
Rough endoplasmic reticulum (RER) yog ER nrog ribosomes nyob rau saum npoo. Vim lub xub ntiag ntawm ribosomes, tag nrho cov qauv zoo li ntxhib, thiab nws thiaj li muaj npe. Ribosomes txuas rau saum npoo nrog ribophorin, glycoprotein receptor. Tsis tas li ntawd, qhov kev khi no tsis ruaj khov, tab sis nws khaws cia thiab tso tawm ib txwm, tshwj tsis yog thaum cov protein raug tsim los ntawm qhov chaw ribosome ib txwm khi rau ER.
Cov qauv ntawm RER yog lub network loj ntawm tubules thiab cov hlab ntsha. Nws yuav tsum raug sau tseg tias RER nto yog txuas nrog lub hnab ntawv nuclear lossis hauv lwm lo lus, nws zoo li qhov txuas ntxiv ntawm lub hnab ntawv nuclear. Lub luag haujlwm tseem ceeb ntawm RER suav nrog kev txhawb nqa ntawm qhov chaw los tsim cov protein, khaws cia ntawm cov cell membranes, thiab tsim cov lysosome enzymes. Tsis tas li ntawd, nws cov qauv txhawb nqa kev ruaj ntseg rau lub cev ntawm tes.
Qhov txawv ntawm Smooth thiab Rough Endoplasmic Reticulum yog dab tsi?
• RER muaj ribosomes ntawm qhov chaw tab sis, tsis nyob hauv SER. Yog li, RER tau pom zoo li ntxhib thaum SER zoo li du hauv lub tshuab tsom.
• SER txuas rau lub hnab ntawv nuclear thaum RER txuas ntxiv nrog lub hnab ntawv nuclear.
• RER pab txhawb rau cov protein synthesis ntau dua SER ua.
• RER feem ntau ua haujlwm raws li kev muab tsev rau ribosomes tsim, qhov SER ua haujlwm ntau yam xws li detoxification, metabolism, thiab steroid synthesis.
• Cov qauv ntawm RER loj dua SER.
• RER yog qhov khaws cia ntawm cov cell membranes, vim nws muab cov cell membrane ntxiv thaum twg xav tau, tab sis SER feem ntau tsis ua.
