Cov txheej txheem:
- Thaum twg qhov du endoplasmic reticulum nrhiav tau?
- Koj paub li cas yog nws ntxhib lossis du endoplasmic reticulum?
- Yuav ua li cas thaum tus du endoplasmic reticulum malfunctions?
- Lub hauv paus chiv keeb ntawm tus kab mob endoplasmic reticulum yog dab tsi?
Video: Thaum tus du endoplasmic reticulum?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Qhov du endoplasmic reticulum ua haujlwm hauv ntau cov txheej txheem metabolic. Nws synthesizes lipids, phospholipids li hauv plasma membranes, thiab steroids. Cov cell uas zais cov khoom no, xws li cov qe ntshav ntawm cov qe ntshav, zes qe menyuam, thiab cov qog roj ntsha ntawm daim tawv nqaij, muaj ntau dhau ntawm cov endoplasmic reticulum.
Thaum twg qhov du endoplasmic reticulum nrhiav tau?
Discovery of Endoplasmic Reticulum (ER):
Nws tau pom nws tus kheej los ntawm Porter ( 1945) thiab Thompson (1945). Lub npe tau muab los ntawm Porter hauv xyoo 1953. Endoplasmic reticulum yog 3-dimensional, nyuaj thiab interconnected syncrri ntawm daim nyias nyias cov kab uas khiav los ntawm cytoplasm.
Koj paub li cas yog nws ntxhib lossis du endoplasmic reticulum?
Muaj ob hom ER. Ob leeg ER ntxhib thiab du ER muaj tib hom daim nyias nyias tab sis lawv muaj cov duab sib txawv. Rough ER zoo li cov nplooj ntawv lossis cov disks ntawm daim nyias nyiasthaum ER du zoo li cov hlab. Rough ER yog hu ua ntxhib vim nws muaj ribosomes txuas rau nws nto.
Yuav ua li cas thaum tus du endoplasmic reticulum malfunctions?
Kev ua haujlwm tsis zoo ntawm ER kev ntxhov siab tshwm sim los ntawm kev laus, kev hloov pauv caj ces, lossis ib puag ncig tuaj yeem ua rau ntau yam kab mob xws li mob ntshav qab zib, mob, thiab cov kab mob neurodegenerative nrog rau Alzheimer's disease, Parkinson's disease, thiab kev puas siab puas ntsws bipolar, uas yog hu ua 'conformational …
Lub hauv paus chiv keeb ntawm tus kab mob endoplasmic reticulum yog dab tsi?
Los ntawm cov txiaj ntsig ntawm txoj kev tshawb fawb no, nws pom tseeb tias muaj ob lub hauv paus chiv keeb ntawm cov txheej txheem membranous, uas yog, lub hnab ntawv nuclear thiab Golgi complex. Thaum xub thawj tus du endoplasmic reticulum tshwm nyob rau hauv ntev arrays tam sim ntawd hauv qab lub plasma membrane.
Pom zoo:
Endoplasmic reticulum zoo li cas?
Lub endoplasmic reticulum zoo li ib lub cev nrog cov kab noj hniav uas tsim cov kab noj hniav, cov cisterns tiaj tus thiab tsis yog lamellar, cov qauv puag ncig . Vim li cas endoplasmic reticulum zoo li pob? Kev piav qhia: Qhov ntxhib endoplasmic reticulum (ER) yog hu ua ' ntxhib' vim nws muaj organelles hu ua ribosomes txuas rau saum npoo.
Puas muaj cov endoplasmic reticulum du?
Tus du endoplasmic reticulum ua haujlwm hauv ntau cov txheej txheem metabolic. Nws synthesizes lipids, phospholipids xws li nyob rau hauv plasma daim nyias nyias, thiab steroids. Cov cell uas zais cov khoom no, xws li cov qe ntshav ntawm cov qe ntshav, zes qe menyuam, thiab cov qog roj ntsha ntawm daim tawv nqaij, muaj ntau dhau ntawm cov endoplasmic reticulum.
Thaum twg calcium ions tso tawm los ntawm sarcoplasmic reticulum?
Lub sarcoplasmic reticulum khaws cov calcium ions, uas nws tso tawm thaum cov leeg hlwb raug txhawb; cov calcium ions ces pab kom hla cov leeg nqaij contraction . Dab tsi ua rau tso cov calcium ions los ntawm sarcoplasmic reticulum? Nervous stimulation ua rau depolarisation ntawm cov leeg nqaij daim nyias nyias (sarcolemma) uas ua rau cov calcium ions tso tawm ntawm sarcoplasmic reticulum .
Puas yog qhov ntxhib endoplasmic reticulum ua kom cov lipids?
Lub endoplasmic reticulum (ER) yog cov kab sib txuas ntawm cov hnab membranous thiab tubules uas sib sau ua ke hloov cov proteins thiab synthesizes lipids. Txawm li cas los xij, ob txoj haujlwm no tau ua nyob rau hauv qhov sib cais ntawm ER:
Txhais li cas thaum tus txiv plig tus thawj coj tawm tsam lwm tus?
Kev sib txuas lus yog ib lub koom haum ntawm kev cai dab qhuas censure siv los xaus lossis tsawg kawg tswj kev sib raug zoo ntawm ib tug tswv cuab ntawm lub koom txoos nrog rau lwm cov tswv cuab ntawm lub koom haum kev ntseeg uas nyob rau hauv ib txwm kev sib raug zoo nrog ib leeg.
