Kumiswa, Imfundo yesibili nezikole
Vacuole: isakhiwo kanye umsebenzi organelles kumaseli zezitshalo nezilwane
Omunye idlula yezitshalo nezilwane amaseli vacuoles. Nokho, umehluko isakhiwo yabo nemisebenzi ala maqembu eziphilayo khulu. Uyini vacuole, isakhiwo kanye umsebenzi kulesi sakhiwo kuzoxoxwa ngakho ngokuningiliziwe esihlokweni.
Uyini vacuole?
Vacuole, timphawu tesakhiwo futhi umsebenzi okuyinto ziyahlukahluka ngaphakathi kwemikhawulo ububanzi, njalo ivela Bubbles kusuka ulwelwesi we endoplasmic reticulum futhi Golgi eziyinkimbinkimbi. Zonke vacuoles kukhona organelles odnomembrannye. Basuke etholakala kuphela amaseli eukaryotic eziphilayo.
Vacuole: lokuphatselene nesakhiwo nemsebenti (Ithebula)
Naphezu umsuka ezivamile, isakhiwo idatha phakathi ontogeny ukuthola abanye lunye. Lapho kungenziwa akhiwe vacuole organelle lokuphatselene nesakhiwo nemsebenti kuye ngokuthi indawo - yonke idatha eziqukethwe etafuleni.
| Buka vacuoles | izici indawo | imisebenzi |
| esitolo | Akhiwe amaseli izitshalo, ke ithatha ingxenye enkulu okuqukethwe yangaphakathi | Amanzi kanye namaminerali ziyoncibilika |
| wokugaya ukudla | Ejwayelekile olulodwa futhi amaningi isilwane amaseli | Ukwenza umsebenzi we-inqubo ukugaya, cleavage izinto eziningi eziphilayo |
| contractile | amaseli isilwane | Ukulawulwa ingcindezi osmotic kwamaseli |
vacuoles izitshalo
lokuphatselene nesakhiwo nemsebenti zazo sisuke sicabanga manje Vacuole, elinesimo usayizi esikhulu kakhulu. Akhiwe plant cells, ugcwalisa cishe isikhala yonke we cytoplasm, okuyinto uyashiywa igobolondo lalo - tonoplast. Lolu hlobo vacuoles kuyinto isikhoxe esigcwele nge ubisi cell. Lolu ketshezi, ogxile amanzi. It ziyoncibilika amaminerali, polysaccharides, amaprotheni monomers, abanye zombala. Lolu hlobo tank, okuyinto igcina zonke izinto ezidingekayo. Asiza amaseli ngempumelelo sisinde kuzo zonke izinkathi ezingezinhle. Ezinye vacuoles buthelela metabolites yesibili ezifana alkaloids, tannins, latex. Zenza esitolo nje kuphela kodwa futhi umsebenzi zokuzivikela, scaring off izilwane eziningi ukunambitheka ezingemnandi astringent.
contractile vacuole
Amaseli we izilwane unicellular kuyinto contractile vacuole. Sakhiwo umsebenzi walo Kuthi ezahlukene. Lokhu bubble onesigqi, okuyinto uqaphe ezingeni ingcindezi kanye lokuhlushwa izinto intracellular. Ngokwesibonelo, amoeba futhi ciliate abahlala naphakathi aqueous lapho emakamu usawoti ngokuvamile kunaleyo cytoplasm yabo. Ngokusho imithetho amanzi physics ngeke iyangena cell isilwane - kusuka esifundeni lokuhlushwa ngaphezulu ukuze aphansi. Ngenxa yalokho yale nqubo obungenza nakanjani kwavela ukubhujiswa eziphilayo. Contractile vacuoles ngokukhishwa amanzi angadingeki nge oncibilikile kuwo ngokulondoloza uhlelo turgor kwamaseli ezingeni njalo, ngokuthi "isitho" Ukukhetha.
vacuole wokugaya ukudla
Lezi vacuoles nobuntu eziphilayo. Ngo unicellular banayo ifomu Bubbles, okuyinto yamukele iphinde isebenze inhlabamkhosi izakhamzimba. Excretion imikhiqizo umzimba kwenzeka kuphi odongeni iseli noma ngokusebenzisa ukuvulwa ozinikele - poroshitsu. Ngo eziphilayo ezinamangqamuzana amaningi, a uhlobo oluthile vacuoles kukhona lysosomes. Lokhu organelles odnomembrannye equkethe enzyme hydrolytic. Lysosomes izinqubo wenziwa pino- futhi phagocytosis, eziswini izakhi hhayi kuphela, kodwa futhi amangqamuzana afile izakhi.
Ngakho, i-vacuole, isakhiwo kanye umsebenzi esesiye sacabangela, kuyinto kumaseli zezitshalo nezilwane. Kuye indawo ke ongenza kuthiwa Stocking, imisebenzi wokugaya ukudla futhi zokulawula.
Similar articles
Trending Now