Eukaryotes - izinto eziphilayo zabo iiseli abe nucleus

Eukaryotes - kakhulu eziphilayo progressive amalungiselelo. Kweli nqaku siza kukhangela kwenye abameli zasendle bobabo kweli qela yaye ziziphi iinkalo ziye ukuba umbutho ukuba ubasuse isikhundla ebhudla kwihlabathi organic.

Ngoobani aba eukaryotes

Ngokutsho inkcazelo yengqiqo, eukaryotes - izinto eziphilayo zabo iiseli ziqulathe nucleus ahombise. Ezi zibandakanya ezi izikumkani zilandelayo: izityalo, izilwanyana, izinto. Kwaye akukho nokuba nzima lomzimba amalungiselelo. Le amoeba kakhulu, amathanga Volvox, umsequoia - zonke eukaryotes.

Nangona ezi seli amaxesha kwinyama ububandezwayo ngumongo. Umzekelo, ukuba ayikho iiseli ezibomvu. Endaweni yoko, le seli igazi iqulethe ihemoglobin zokuthuthwa oksijini kunye carbon dioxide. Ezi seli ibe ingxenye kuphela xa nisaqala yophuhliso lwayo. Emva koko, le organelle ibhuqiwe, kunye nayo, Ulahlekwe ukukwazi ukwahlula isakhiwo yonke. Ngoko ke, xa isenza imisebenzi yayo, iiseli ziyafa.

Isakhiwo eukaryotic

Xa kwiiseli eukaryotes abe inucleus. Kwaye ngamanye amaxesha akukho nokuba abe mnye. Le organelle dvumembrannaya iqulethe e matrix yayo ulwazi yemfuza ukuyifunda molecule DNA. Le ongundoqo iquka unit ngaphezulu, ebonelela zothutho kwezinto, kunye matrix - indawo yayo yangaphakathi. Eyona umsebenzi kwesi sakhiwo - yokugcina ulwazi yemfuza kunye nokudluliselwa yayo kwiiseli intombi ngenxa candelo.

Zangaphakathi core medium iquka la macandelo eziliqela. Okokuqala karyoplasm. Iqulethe nucleoli kunye chromatin imicu. Le yokugqibela luqulathe ngeeproteni nangenucleic acids. Kuye kwasekwa xa zofuzo Helix. Bona nje abathwali ulwazi yemfuza. Eukaryotes - izinto eziphilayo apho iintlobo ezimbini umphakathi ukuba abunjwe kwezinye iimeko: kwezityalo kunye okuzala. Umzekelo iphawulekayo kule - ciliate. Walo ongundoqo okuzala exercise ukugcinwa kunye nokusasazwa le kweejini, kunye kwezityalo - nokulawulwa protein biosynthesis.

Umahluko omkhulu of ami- kunye eukaryotes

Prokaryotes ndikhuphe ngumongo. Eli qela eziphilayo kuphela lokwenyaniso ummandla wendalo - bacterium. Kodwa iimpawu ezinjalo lwezakhiwo akuthethi ukuba kwiiseli ezi zinto ziphilayo akukho abathwali ulwazi yemfuza. Iintsholongwane iquka molecule elijekelezayo lwe DNA - plasmid. Noko ke, ukuba zicwangciswe ngendlela uluhlu kwindawo ethile kukho icytoplasm kwaye akukho imvulophu eqhelekileyo. Loo isakhiwo kuthiwa nucleoid. Kukho omnye umahluko. DNA kwizisele prokaryotic akazalani kwiiproteni engundoqo. Izazinzulu ziye zasekwa ubukho plasmids kwi iiseli eukaryotes. Ba kwezinye organelles semi-ezimeleyo, ezifana mitochondria kunye plastids.

features Progressive zesakhiwo

Eukaryotes zizinto eziphilayo ukuba iimpawu ngxuba ngesakhiwo kuwo onke amanqanaba esebe. Okokuqala kumayelana indlela ukwanda. iintsholongwane Nucleoid inika elula them - ukwahlulwa iseli ibe ezimbini. Eukaryotes - eziphilayo leyo bayakwazi kwaye zonke iintlobo lokwanda uhlobo yabo: ngesondo kunye maqanda, parthenogenesis, conjugation. Ubonelela ngokutshintshiselana ngolwazi yemfuza, ukuvela kunye nokudityaniswa kwi kweejini iqela lemisebenzi esemqoka luncedo, yaye ngenxa yoko lithathelwe engcono nanini-ukutshintsha iimeko zokusingqongileyo. Lo msebenzi kunye eukaryotes kuvunyelwa ukuba babe ngabantu abakwizihlalo ku lawula inkqubo yehlabathi ephilayo.

Ngoko eukaryotes ke izinto zabo iiseli kuba nucleus ahombise. Ezi ziquka izityalo, izilwanyana kunye nezinye izinto. Ubukho engundoqo luphawu phambili esi sakhiwo, ngokubonelela inqanaba eliphezulu uphuhliso kunye nokuziqhelanisa.