Ko te pūtau kitakita

Bacteria ( "rakau" i te Kariki) tohu kingitanga (rōpū) enucleated (prokaryotic), microorganisms, rauropi pūtau te tikanga. I teie mahana te mohiotia reira, ka whakaahuatia i roto i te raupapa o o mano tekau o ngā momo. Scientists whakaaro e reira te mea atu o te miriona.

kia pūtau kitakita porohita, koru, tokotoko-āhua. I roto i te wā onge, i reira e pūtoru, tetrahedral, whetu me te e C-āhua ranei. Āhua whakatau te kaha nohoia e te pūtau kitakita. Hei tauira, i runga i te puka, moroiti-rauropi he tetahi tohu o te nekeneke, kaha ki e haapa'o ki te mata, tetahi ara ranei tetahi matūkai mimititanga pūhui.

Kei roto te pūtau kitakita e toru hanganga whakahauanga: membrane cytoplasmic, ribosomes me nucleoid.

Mai i te membrane ki te taha ki waho ko te papa maha. I roto i ngā, i reira te mea he putea, capsule, taiepa pūtau hāwareware. I tua atu, whakawhanakehia te waho rerekē ngā hanganga mata: Villi, flagella. E ngā te cytoplasm me te membrane i roto i te ariā o "protoplast".

iti te pūtau kitakita me ona ihirangi katoa e te taiao o waho i te tikanga o te membrane. Roto i, he ōrite te hautanga o cytoplasm kei pūmua wairewa RNA substrates utu hohenga, ngā pūhui. Ko te toenga o te kei roto ngā āhuatanga hanganga.

Ko te huakita pūtau kei roto kahore karihi membrane me tetahi atu intracytoplasmic kiriuhi, e kore ahu i te cytoplasmic membrane. Heoi, hoki etahi prokaryotes angamaheni rohe "iao" takotoranga matua. Enei "matakoma" - mesosoma - mahi mahi rerekē, me te wehe i te pūtau kitakita ki ngā wāhanga functionally rerekē.

raraunga katoa e tika ana mō te ora, kua roto i te DNA taua. Pūira, e Kei roto he pūtau kitakita, te tikanga kua te ahua o mowhiti, covalently-katia. I tetahi wāhi, te DNA piri ki te membrane me whakanohoia i roto i wehe, Heoi, ko kore tapu i te cytoplasm hanganga. huaina ana tēnei hanganga ko "nucleoid". Ko te puka whänui o te pūira kitakita he roa nui atu i te mirimita. Kei te nuinga o te wā māngai te reira i roto i te kape kotahi. I roto i te tahi atu kupu, tata katoa prokaryotes Are haploid. Heoi, i roto i etahi tikanga motuhake, ka taea e roto i te pūtau kitakita kape o ratou pūira.

O te faufaa ngā i roto i te ora o te huakita kua he taiepa pūtau. Me ki tenei huānga hanganga kaha kore te hiahiatia. i whiwhi i raro i taiwhanga tikanga i etahi ahua o prokaryotes, i roto i nei i ngaro i te taiepa i roto i te katoa ranei i roto i te wahi. Ēnei huakita taea te tīariari i raro i tikanga noa, engari i roto i ētahi wā, ngaro ratou kaha ki te wehe. I roto i te natura, i reira he he rōpū o ngā prokaryotes, e kore e nei i roto i roto i tona hanganga, he taiepa.

I runga i te mata o te taiepa i waho taea te tūnga paparanga amorphous - capsule. E wehea paparanga mucous i te moroiti ko ngāwari nui, to ratou kahore hononga ki te pūtau. hoki i Kēhi te hanganga pai, e kore e amorphous ratou.

Whakatö o te huakita kawea atu e etahi ahua o te ōrite, ā-rua wehenga ranei hua o te ripeka. Rerekē ngā rōpū He rerekē ngā putanga o te wehenga. Ko te kupu, hei tauira, puta cyanobacteria uri ara maha - i te maha o ngā wehenga-rua ngā. Ko te hua ko te wha ki te mano o microorganisms hou. E ratou tikanga motuhake e ai whakarite tohuira plasticity hiahiatia ki te urutau ki te taiao o waho, me te kunenga te huri.