Iseli Eukaryotic Iinhlangano yayo kwesakhiwo obusebenzayo

eukaryotic iseli imfundo kwaba yesibili ebaluleke kunazo zonke (emva nokuvela kokuphila uqobo) umcimbi kwemvelo. Umehluko omkhulu ayingqalasizinda of eukaryotes kusukela prokaryotes kuba phambi uhlelo neliphelele kunalelo zofuzo. Siyabonga ukuvela kanye nokuthuthukiswa a kuyi-nucleus yengqamuzana, okwanda degree nesimo sengqondo sokuzivumelanisa nezimo eziphawula izinto eziphilayo unicellular kule mibandela njalo ushintsha kanye nekhono ukuzivumelanisa ngokushesha ngaphandle kokwenza noma yiziphi izinguquko ezinkulu ohlelweni lezinceku zofuzo.

Eukaryotic esitokisini, cytoplasm zazo yisici izinqubo asebenzayo umzimba, ahlukaniswe kahle kusuka endaweni storage, wokufundwayo futhi ukufanisana kolwazi zofuzo, wakwazi ukuqhubekisela phambili kwemvelo. Lena eyingqopha futhi umcimbi kubalulekile kwemvelo, ngokososayensi, livelile kungakadluli iminyaka eziyizinkulungwane ezingu-2,6 edlule, ezimpambanweni zomgwaqo sezakhiwo ezimbili Geological -. Archean futhi Proterozoic.

Ukuphakama nokulungiseka nokuzinza kwezakhiwo ongizalayo imfuneko kwemvelo egcwele yemvelo. Kuyinto amandla abo ephezulu lithathelwe cell eukaryotic ungase luphenduke eziphilayo ezinamangqamuzana amaningi nenhlangano eziyinkimbinkimbi kwesakhiwo. Ngempela, ezinamangqamuzana amaningi eziphilayo, amaseli nge ufuzo ofanayo, yokuvumelana izimo ezishintshayo, akha ezahlukene ngokuphelele, kokubili izakhiwo zabo morphological, nokusebenza, izindwangu. Lokho kuyinqobo olukhulu kwemvelo eukaryotes, esiye saholela ukuvela ezihlukahlukene ezifana enkulu eziphilayo emhlabeni uphinde uphume enkundleni yokuziphendukela kwemvelo endoda ngokwayo.

Isakhiwo amaseli kohlobo eukaryotic inezici eziningana esiyingqayizivele ezingesiyo prokaryotes isici. iseli Eukaryotic iqukethe semali zofuzo (90%), okuyinto bagxila chromosomal izakhiwo lecinisekisa kwamangqamuzana yabo futhi lunye. Noma iyiphi iseli eukaryotic elinesimo core ehlukile. Lona main lolwehlukanisa lolu hlobo amaseli. Omunye umehluko ezibalulekile ezivela prokaryotes kukhona organelles lamaseli eukaryotic - ezihlukahlukene idlula futhi intracellular.

iseli Eukaryotic, uma kuqhathaniswa nabangu prokaryotic inohlelo eziyinkimbinkimbi multistage okuqonda izinto ezihlukahlukene. Emvelweni kukhona ezinye ejwayelekile jikelele eukaryotic cell hlobo. Bonke 'zinezikhathi ukwehluka Amazing ukuthi kungenxa ngokunembile ukuze isidingo lithathelwe kwemvelo. Isici esibaluleke kakhulu eukaryotes kuyinto compartmentalisation yabo esingokwemvelo - kwasendaweni zonke izinqubo kwamakhemikhali linezingxenye yeselula ngabanye, ahlukaniswe ulwelwesi intracellular. Eukaryotes zinezigaba eziningi eziyinkimbinkimbi kwesakhiwo. Ezifana uhlelo ulwelwesi; -matrix cytoplasmic, okuyinto esemqoka izidakamizwa intracellular; organelles yeselula - yezingxenye esemqoka obusebenzayo eukaryotes.