Kiriuwhi: hanganga me te mahi

kiriuwhi - he organelle whakahauanga o ngā pūtau eukaryotic. Kei te kitea te reira i roto i te pūtau o ngā tipu, kararehe, me te tangata. Ko te mahi o tenei wāhanga o te pūtau e rerekē, me te e te nuinga e pā ana ki te ariā, whakarerekētanga me te waka o ngā pūhui matū waro.

Hoki te wā tuatahi kitea te kiriuwhi i roto i 1945. kite pūtaiao American K. Porter ia ki tetahi o nga whārahi hiko tuatahi. Mai taua wa, timata reira tona rangahau kaha.

I roto i te pūtau, i reira e rua putanga o tenei organelle:

• Ko te potakataka kiriuwhi taratara (ribosomes plurality hipoki) ranei.
• O te pūnaha kiriuwhi maeneene maeneene ranei.

Kei ia momo o reticulum ētahi āhuatanga, me te mahi i te mahi tino rerekē. Kia titiro a ki a ratou i roto i te kōrero atu.

Potakataka nei kiriuwhi: te hanganga. Tenei organelle Ko te pūnaha tank, vesicles me tubules. ngā ona taiepa o bilipidnoy membrane. Ko te whanui o te kōhao kia ngā i te 20 nm ki te maha micrometers - he ti'aturi i runga i te mahi o nga pūtau secretory katoa.

Kaua he iti pūtau motuhake, e kua āhuatanga e te taumata iti o te pākia e, tukuna nga EPS ki te torutoru anake tāke marara. Roto te pūtau, e te mea kaha synthesize pūmua ngā kiriuwhi o te plurality o tāke, me te pūnaha tubules branched.

Tikanga, hono potakataka EPM i roto i kiriuhi tubular te ki te kōpaki karihi - i roto i tenei ara pangia tukanga kōtuitanga matatini me ngā rāpoi ngota waka pūmua.

Potakataka nei kiriuwhi: te mahi. Ka rite ki kua whakahuatia, te mata katoa e XPS cytoplasm hipoki e ribosomes, e kua mohiotia ki kia whai wāhi i roto i te kōtuitanga pūmua. EPS - he wahi o te ariā me te waka o pūhui pūmua.

Tenei organelle haepapa mo te kōtuitui o te membrane cytoplasmic pūmua wāhi. Otiia i roto i te nuinga o te wā e atu rāpoi pūmua mā vesicles membrane e kawea ki te taputapu Golgi, kei hea he ratou anō whakarerekētanga me te tohatoha hiahia o nga pūtau, aua, me te kopa.

I tua atu, kōwhao puta EPS tāke me etahi huringa i roto i te pūmua - hei tauira, rironga o wae warowaihā. Here, i te whakawhāititanga o granules nui secretory e hanga e.

Maheni whatunga kiriuwhi: hanganga me te mahi. He etahi rerekētanga te hanganga o nga EPS maheni. Hei tauira, ngā tenei organelle anake o tāke, me te e kore pūnaha o tubules. Complexes pērā EPS, rite ki te tikanga, he iti, engari te whanui o te tank, i runga i te anga ke, ake.

E kore te te pūnaha kiriuwhi maeneene e pā ana ki te ariā o te wae pūmua, engari mahi he maha o ngā mahi ōrite nui. Hei tauira, ko te kōtuitui i konei o hormones pūtaiaki i roto i te tangata, me vertebrates katoa. Ko Ko te aha te mea tino nui te rōrahi o EPS maeneene i roto i ngā pūtau adrenal.

I roto i ngā pūtau ate hua EPS te whākōkī tika wāhi i roto i te ka pākia warowaihā, ara whāwehe o glycogen. Kei te mohiotia ano te reira e he haepapa mo te neutralization o tāoke te pūtau ate. I roto i tenei organelle tāke faarahi te ariā o te wae hydrophilic ka te nei piri ki te rāpoi ngota paitini ona memehatanga i roto i te toto me te mimi. Ko reira ngā e i roto i hepatocytes, e hinga tonu i raro i te mana o tāoke (paihana, waipiro), tata katoa te pūtau nohoia e te tāke piri mokowā EPS maheni.

I roto i ngā pūtau uaua, i reira te mea he ahua motuhake o EPS maheni - reticulum sarcoplasmic. E ohipa te reira i te konupūmā e fakatonutonu taupuni kupu tukanga mahi me ngā pūtau noho.

I taea te kite, EPS He whānui, me te tino nui mo te mahi noa o ngā pūtau hauora mahi.