Endoplasmic reticulum: marongerwo uye mashandiro

Endoplasmic reticulum - a fanira organelle masero eukaryotic. Rinowanikwa masero Zvirimwa, mhuka uye vanhu. Mashandiro chikamu ichi muchitokisi ndivo akasiyana-siyana uye vari kunyanya chokuita kwetunhu, nadzurudzo uye yokufambisa kuti makemikari yeimwe.

Nokuti kokutanga endoplasmic reticulum rakaonekwa muna 1945. musayendisiti American K. Porter akamuona nomumwe yokutanga yemagetsi nemaikorosikopu. Kubvira panguva iyoyo, zvakatanga chacho vanoshingaira tsvakurudzo.

Muchitokisi, pane shanduro mbiri organelle ichi:

• The granular kana mafungu endoplasmic reticulum (akafukidzwa muzvizhinji ribosomes).
• Of kumeso kana kumeso endoplasmic reticulum.

Mumwe mhando reticulum ane zvimwe zvinhu uye anoita zvakasiyana zvachose basa. Ngatitarisei navo zvizere.

Granular endoplasmic reticulum: chacho. organelle uyu tangi hurongwa, vesicles uye tubules. Masvingo aro ine bilipidnoy membrane. Upamhi mhango Ingasiyana kubva 20 nm kune micrometers akawanda - vose novimba basa secretory masero.

Ko zvishoma kushandiswa masero, ayo kuburikidza pasi azvipire muviri hwokuratidza kuti EPS akabvuma pamwe vakapararira Matangi mashoma. Inside muchitokisi, riri achishingaira synthesize mapuroteni endoplasmic reticulum rine muzvizhinji ane matangi mapazi tubules hurongwa.

Kazhinji, granular EPM kuburikidza tubular membranes hwakabatana hamvuropu renyukireya - nenzira iyi kuwana zvakaoma kwetunhu pezvakaitwa uye yokufambisa mapuroteni mamorekuru.

Granular endoplasmic reticulum: mashandiro. Sezvambotaurwa, pose yose nokuda XPS cytoplasm kuchizvivanza ribosomes, izvo zvinozivikanwa kuti kubatanidzwa mapuroteni usage. EPS - nzvimbo kwetunhu uye yokufambisa mapuroteni yeimwe.

organelle ichi mhosva kwetunhu cytoplasmic Kamudzira chinokosha mapurotini. Asi kakawanda achishandisa mamwe mapuroteni mamorekuru Via Kamudzira vesicles vari kuendeswa kune Golgi midziyo, apo vari zvimwe nadzurudzo nokuparadzirwa zvinodiwa masero ukuwo, uye munyama.

Uyezve, in kuitika EPS matangi vamwe kuchinja puroteni - semuenzaniso, accession kuti chikamu carbohydrate. Pano, maererano aggregation makuru secretory granules vari aumba.

Smooth endoplasmic rwomumbure: marongerwo uye ushande. The nemamiriro kumeso EPS ane zvimwe kusiyana. Somuenzaniso, organelle ichi rinoumbwa chete matangi asina gadziriro tubules. Zvivako EPS zvakadai, somunhu mutemo, iduku, asi upamhi tangi nekusiyana, zvakawanda.

The kumeso endoplasmic reticulum haisi chokuita kwetunhu puroteni zvinoriumba asi anoita dzinoverengeka zvakaenzana zvinokosha mabasa. Somuenzaniso, pano munhu kwetunhu kuti steroid hormone muvanhu uye zvose vertebrates. Ndokusaka bhuku kumeso EPS mumasero adrenal rakanyatsojeka guru.

In chiropa masero EPS pave makemikari zvakafanira munyaya carbohydrate muviri, kureva manyowa kuti glycogen. Chinonziwo kuti chiropa masero ndivo mhosva neutralization kuti muchetura. In ichi organelle Matangi kubatana kwetunhu munhu hydrophilic pakuderedza riri ipapo kuda ane muchetura Morekuru anowedzera solubility kwayo muropa uye weti. Zvinofadza kuti muna hepatocytes, iyo nguva kuwira pasi pokudzora muchetura (chepfu, doro), anenge ose sero inogarwa zvakasimba munzvimbo dzokuzororera dzaiva Matangi wakatsetseka EPS.

In tsandanyama masero, pane kuti kumeso EPS chinokosha - sarcoplasmic reticulum. It anoita se saka chitoro karusiyamu ndangariro kurongedza basa uye achizorora masero.

Sezvinogona kuoneka, EPS mabasa vari siyana uye zvikuru nokuti chakaipa nokushanda kwenhengo masero utano.