Eukaryotes - ne kwayoyin wanda Kwayoyin da tsakiya

Eukaryotes - mafi m shirya kwayoyin. A wannan labarin, za mu duba a daya daga cikin wakilan na namun daji nasa ne wannan kungiya da kuma abin da siffofin sun yarda da kungiyar su kama su a rinjaye matsayi a cikin kwayoyin duniya.

Su wane ne eukaryotes

Bisa ga definition daga cikin ra'ayi, eukaryotes - ne kwayoyin wanda Kwayoyin dauke da wani tsakiya ado. Wadannan sun hada da wadannan mulkokin: shuke-shuke, da dabbobi, fungi. Kuma ko ta yaya wuya su jiki yana shirya. A microscopic amoeba, Volvox mazauna, giant sequoia - duk eukaryotes.

Ko da yake wadannan Kwayoyin suna da wani lokacin tsokoki iya hana tsakiya. Alal misali, shi ne ba a cikin ja jini Kwayoyin. A maimakon haka, wannan jini cell ƙunshi haemoglobin shari oxygen da kuma carbon dioxide. Wadannan Kwayoyin dauke da wani tsakiya kawai a farkon matakai na ta ci gaba. Sa'an nan, wannan organelle aka hallaka, kuma da shi, da kuma rasa ikon raba duka tsarin. Saboda haka, ta hanyar yin ta ayyuka, irin Kwayoyin mutu.

tsarin eukaryotic

A cikin sel eukaryotes da tsakiya. Kuma wani lokacin, ba ko ɗaya. Wannan dvumembrannaya organelle ƙunshi a matrix da kwayoyin bayanai shigar wanda ke aiki a wani jigidar halittar DNA. A core kunshi wani surface naúrar, wanda ya samar da kai daga abubuwa, da kuma matrix - na ciki yanayi. Babban aiki na wannan tsarin - ajiya na kwayoyin bayanai da kuma ta canja wuri zuwa 'yar Kwayoyin sakamakon daga cikin rabo.

Inner core matsakaici qunshi da dama aka gyara. Da farko shi karyoplasm. Ya ƙunshi nucleoli kuma chromatin strands. A karshen kunshi sunadaran da nucleic acid. Yana da aka kafa a lokacin da chromosomes Helix. Suna kawai ne yan dako a kayyade. Eukaryotes - ne kwayoyin a cikin abin da iri biyu tsakiya za a iya kafa a wasu lokuta: vegetative da generative. A karin misalin wannan - ciliate. Its generative core motsa jiki adana da kuma watsa daga cikin genotype, kuma vegetative - tsari na gina jiki biosynthesis.

Babban bambancin pro- da eukaryotes

Prokaryotes sun bayar da tsakiya. Wannan rukuni na kwayoyin ne kawai gaskiya daula yanayi - Kwayoyin cutar. Amma irin wannan tsarin fasali ba ya nufin cewa a cikin sel wadannan kwayoyin ba dako kayyade bayani. Kwayoyin cutar sun dauki madauwari kwayoyin na DNA - plasmid. Duk da haka, suna shirya a cikin nau'i na gungu a wani wuri na cytoplasm kuma da babu kowa ambulaf. Irin wannan tsarin aka kira nucleoid. Akwai wani bambanci. DNA a prokaryotic Kwayoyin ba alaka core sunadaran. Masana kimiyya sun kafa wanzuwar plasmids a cikin sel eukaryotes. Su ne a cikin wasu Semi-m wasu gabbansa, kamar mitochondria da plastids.

Progressive tsarin fasali

Eukaryotes ne kwayoyin da suke da karin hadaddun fasali na tsarin a dukkan matakai na kungiyar. Da farko shi shafi fadada hanyar. Nucleoid kwayoyin samar da mafi sauki daga gare su - da rabo daga wani cell cikin biyu. Eukaryotes - kwayoyin wanda suke iya da kuma iri daban-daban na haifuwa na da nasu irin: jima'i da kuma asexual, parthenogenesis, Tasrifu. Yana azurta musayar kayyade bayanai, da fitowan da kuma bunqasar a genotype da dama amfani fasali, ya kuma inganta mafi karbuwa ga taba-canza muhalli da yanayi. Wannan yanayin da yarda eukaryotes zuwa zauna a rinjaye matsayi a cikin kwayoyin duniya tsarin.

Saboda haka eukaryotes ne kwayoyin wanda Kwayoyin da tsakiya ado. Wadannan sun hada da shuke-shuke, da dabbobi, da fungi. A gaban da zuciyar ne m fasalin ginin, samar da wani babban matakin ci gaba da kuma karbuwa.