Qhov sib txawv tseem ceeb ntawm granular thiab agranular endoplasmic reticulum yog tias granular endoplasmic reticulum muaj ribosomes saum npoo av thaum agranular endoplasmic reticulum tsis muaj ribosomes saum npoo.
Endoplasmic reticulum (ER) yog ib lub hnab ntim tiaj tiaj thiab lub network ntawm tubules tam sim no nyob rau hauv cytoplasm ntawm eukaryotic hlwb. ER yog ib qho tseem ceeb organelle uas koom nrog hauv synthesis, folding, hloov kho, thiab thauj cov proteins. Ntxiv mus, ER plays lub luag haujlwm tseem ceeb hauv calcium cia, carbohydrate metabolism thiab lipid synthesis thiab metabolism. Muaj ob hom ER raws li qhov tsis muaj lossis muaj cov ribosomes. Lawv yog cov ntxhib lossis granular ER thiab du lossis agranular ER. Granular ER muaj ribosomes nyob rau saum npoo, muab nws ib tug ntxhib tsos. Agranular ER tsis muaj ribosomes nyob rau saum npoo, muab nws zoo li du. Ntau lub hlwb muaj ob hom ER.
Granular Endoplasmic Reticulum yog dab tsi?
Granular endoplasmic reticulum yog ib qho ntawm ob hom ER, thiab nws muaj ribosomes saum npoo. Rough ER yog lwm lub npe rau granular ER vim nws muaj qhov tsis zoo. Granular ER muaj ntau nyob rau hauv hlwb xws li hepatocytes, uas nquag synthesize proteins xws li enzymes. Granular ER yog txuam nrog protein synthesis. Protein folding yog lwm txoj haujlwm tseem ceeb ntawm granular ER. Ntxiv mus, granular ER nqa tawm cov protein sorting.
Daim duab 01: Granular ER thiab Agranular ER
Agranular Endoplasmic Reticulum yog dab tsi?
Agranular endoplasmic reticulum yog hom ER uas tsis muaj ribosomes saum npoo los yog kos rau hauv nws. Yog li ntawd, nws muaj ib tug du tsos thiab tshwm sim feem ntau nyob rau hauv ib tug tubular daim ntawv. Smooth ER yog lwm lub npe rau agranular ER. Agranular ER koom nrog kev tsim khoom ntawm ntau yam khoom xws li cov lipids tseem ceeb (phospholipids thiab cov roj cholesterol) thiab cov tshuaj hormones steroid, thiab lwm yam, xav tau los ntawm lub cell. Ntxiv mus, nws thauj cov khoom ntawm ER ntxhib mus rau lwm cov cellular organelles, tshwj xeeb tshaj yog rau Golgi apparatus. Ntxiv rau qhov ntawd, agranular ER kuj yog lub luag haujlwm rau cov metabolism ntawm carbohydrates. Agranular ER kuj khaws thiab tso tawm calcium ions.
Dab tsi yog qhov zoo sib xws ntawm Granular thiab Agranular Endoplasmic Reticulum?
- Granular thiab agranular endoplasmic reticulum yog ob hom ER.
- Ntau lub hlwb muaj ob hom.
Qhov txawv ntawm Granular thiab Agranular Endoplasmic Reticulum yog dab tsi?
Granular ER yog hom ER uas muaj ribosomes ntawm nws thaum agranular ER yog hom ER uas tsis muaj ribosomes ntawm nws. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm granular thiab agranular endoplasmic reticulum. Ntxiv mus, granular ER muaj qhov ntxhib zoo li thaum agranular ER muaj qhov zoo nkauj. Tsis tas li ntawd, granular ER yog lub luag haujlwm rau kev tsim cov protein, protein folding thiab cov protein sorting. Nyob rau hauv sib piv, agranular ER pab synthesize thiab mloog ntau yam tshuaj xws li phospholipids, thiab lwm yam, xav tau los ntawm lub cell. Nws tseem yog lub luag haujlwm rau cov metabolism hauv carbohydrate, khaws cia thiab tso cov calcium ions, thiab lwm yam. Yog li, qhov no yog qhov sib txawv ntawm granular thiab agranular endoplasmic reticulum.
Granular ER feem ntau tshwm sim hauv cov hlwb uas nquag tsim cov proteins xws li enzymes thiab hauv qog thaum agranular ER feem ntau hauv cov hlwb uas koom nrog steroid lossis lipid synthesis, carbohydrate metabolism, electrolyte excretion, impulse conduction thiab nrog pigment ntau lawm..
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm granular thiab agranular endoplasmic reticulum.
Summary – Granular vs Agranular Endoplasmic Reticulum
Endoplasmic reticulum yog tubular network ntawm daim nyias nyias muaj nyob hauv cytoplasm ntawm eukaryotic cell. ER tuaj yeem yog granular lossis agranular raws li qhov muaj thiab tsis muaj ribosomes saum npoo. Qhov sib txawv tseem ceeb ntawm granular thiab agranular endoplasmic reticulum yog tias granular ER muaj ribosomes txuas rau nws thaum agranular ER tsis muaj ribosomes. Tsis tas li ntawd, granular ER muaj qhov ntxhib zoo li thaum agranular ER muaj qhov zoo nkauj. Granular ER nqa tawm protein synthesis, folding, zoo tswj thiab protein sorting. Agranular ER nqa tawm cov synthesis ntawm ntau yam lipids, steroid hormones, thiab lwm yam uas xav tau los ntawm lub cell. Tsis tas li ntawd, nws nqa tawm carbohydrate metabolism thiab khaws cia thiab tso calcium ions nyob rau hauv lub cell. Yog li, qhov no qhia txog qhov sib txawv ntawm granular thiab agranular endoplasmic reticulum.
