Cage - lokho ekuphileni!

Uma Usayikhumbula yini inkambo biology, iseli - iyunithi kwesakhiwo obusebenzayo iyiphi eziphilayo. Singathini, ngisho noma kukhona eziphilayo ezifana amelela cell eyodwa kuphela. Kungakho igama - oluncane. Kodwa emzimbeni bezilwane nabantu nje afanayo Amazing amaseli. Masikhumbule isakhiwo amaseli.

Njalo cell emzimbeni wethu lizungezwe enamathela ekhethekile zokuzivikela, okuthiwa "ulwelwesi". Ngaphakathi kuba ikhenela. Kuyaphawuleka ukuthi akuwona wonke amangqamuzana omzimba aqukethe nuclei. Ngokwesibonelo, njengoba amangqamuzana yakhe abomvu ulahlekelwe nokuvuthwa yabo. Ngo amaseli kwemisipha striated, kunalokho, akekho noyedwa core, kodwa abaningana. Njengoba kushiwo ngenhla, kukhona ekhethekile cell plasma ulwelwesi. umsebenzi Its main - ukuqinisekisa nokuxhumana amaseli elingumakhelwane imvelo. Njengoba kungenca ulwelwesi kwamaseli out yonke imikhiqizo ezingadingekile umzimba, kanye uthole kudingekile for ukusebenza evamile ndaba, singasho ukuthi - kwenye yezingxenye ezibaluleke kakhulu. Dedela we ketshezi futhi, kunalokho, okukhipha yabo noma isimiso okusheshayo, kungaba ngu asebenzayo ezokuthutha ngemigudu ekhethekile.

Core - kungenye ingxenye ebalulekile iyunithi isakhi a eziphilayo, okuthiwa "amaseli." Lena organelle encane eyindilinga, edlala indima ebalulekile ukulawulwa izinqubo yeselula, futhi athwala imininingwane edingekayo yezakhi zofuzo. Emongweni it has ulwelwesi ayo, okuyinto edingekayo ukuze uwahlukanise kusukela cytoplasm.

Ukuqinisekisa ukubaluleka nucleus emphilweni iseli, ososayensi baye baqhuba ucwaningo eziningana. Ingqikithi kwawo kuhlanganisa e yokuthi ngaleso amoebae kusetshenziswa inaliti ekhethekile isuswe nucleus. Ngemva kwezinsuku ezimbalwa le amoeba zokukhwabanisa wafa. Cha, akazange ayeke ukudla, kodwa wahlala cishe zonke izinqubo. Yiqiniso, kuthathwa ukuthi amoeba bafe ngenxa olwenziwa "imisebenzi", kodwa isipiliyoni, lapho core singasuki kinid okuphindaphindiwe, kodwa nje ihamba yabonisa ukuthi amoeba ngenxa nokugxambukela akafi.

organelle Ngokulandelayo, ngaphandle ezingasetshenziswa engekho iseli - kuyinto mitochondria. Lizungezwe ulwelwesi double. Umsebenzi oyinhloko le sostavlyayushey iyiphi amaseli - ukukhiqizwa ATP ngu-electron ezokuthutha kanye oxidative phosphorylation izinqubo. Naphezu kweqiniso lokuthi mitochondria babe DNA zabo, amaphrotheni zalo okubhalwe ngoba nge-DNA, elivela cytoplasm. Sikhishwe yokuthi amandla kubalulekile ukuze siphile futhi usebenze kahle wonke amaseli, ukubaluleka kwalesi organelle kuba emangalisayo kubalulekile isakhiwo ezifana kuseli. Isakhiwo ngasinye ngokulinganayo mitochondria futhi ayinaso umehluko. Kukhona ulwelwesi ezimbili, eyokuqala elingaphandle futhi ukhonza ukuhlukanisa mitochondria kusukela cytoplasm. Esesibili - elingaphakathi, yangaphandle uhlukane isikhala intermembrane ka mitochondria futhi ivikela okuqukethwe singangeni kusuka ngaphandle.

Ngamunye cell organelles kubaluleke ngokukhethekile, ngakho-ke kunzima kakhulu ukuthola ukuthi iyini ezingadingekile futhi kudingekile. Cage - lokho ekuphileni!