Prokaryotic cell - cell kwayoyin pre-nukiliya

Prokaryotic cell - An, a gaskiya, kawai shirya jiki, wanda ya rike da halaye na kakanninsu. Su tsare kasaftawa su raba mulkin Monera, wanda ya hada da jikin kwayoyin cutar da cyanobacteria (blue-kore algae).

Abin da yake haka "sauki" a cikin tsarin da pre-nukiliya kwayoyin? Prokaryotic cell yana da wani tsakiya, kewaye da nasu harsashi, mitochondria da plastids. A cibiyar ne a cytoplasm nucleoid (nucleotide), wanda ya kunshi daya nukleproteidnoy tsarin hada da annular jigidar halittar DNA. Wannan hadadden ake kira da kwayan chromosome. Aras cell kwayoyin da blue-kore algae ne rabu da waje matsakaici m cell bango ko kwantena da mucous membrane. A bango na firamare tsarin naúrar ne yafi hada da wani abu murein (kafa sunadarai ba da carbohydrates), wanda ya yi aikin aiki na waje kwarangwal, bada siffar da kuma kare Kwayoyin daga waje samuwar kasashe. A ciki membrane yana da wadannan ayyuka: kariya, sufuri, da kuma rarraba ji na samuwar kasashe.

A ciki tsarin prokaryotic Kwayoyin nuna cewa cytoplasm da kuma abun da ke ciki shi ne da yawa poorer fiye da abin da na nukiliya (eukaryotic). Ya ƙunshi ribosomes, waxanda suke da zama dole domin gina jiki kira. Har ila yau, akwai wata matattarar tsarin, wanda aiki a matsayin m da wasu gabbansa - mitochondria, endoplasmic reticulum, Golgi da plastids. Alal misali, prokaryotic cell yana da wani bulging diaphragm, da ake kira mesosoma. A nan ne kan aiwatar da numfasawa da makamashi saki a kwayoyin.

Har ila yau, pre-nukiliya kwayoyin ne iya sporulation, amma ba su yi kiwo tare da su. A spores ko cysts ne m membranes cewa taimake kwayoyin to tsira unfavorable yanayi na su. Don ya raya rai a cikin wadanda ba-core yanayi ne iya adana gina jiki - fats, hadaddun carbohydrates.

A prokaryotic tantanin halitta zai iya ninka da division, budding da Tasrifu. kiwo Hanyar dogara a kan irin kwayoyin cuta ko cyanobacteria. Division da budding - hanyoyin da cewa ba da damar gwada da sauri kara yawan size. Tasrifu abin da ya auku a E. coli, a jima'i tsari, wanda na taimaka wa kayyade bambancin a kwayoyin.

Saboda haka, prokaryotes - a pre-nukiliya Kwayoyin, wanda ba yi wa dai tantanin halitta tsakiya da kuma suna hana da yawa membrane wasu gabbansa, amma da ikon canja. Abin da suka kasance iya daidaita da rayuwa a cikin wani yanayi inda ba wanda ya tsira more - nukiliya reactor, da rijiyoyin man fetur. A babbar yawan wakilan mulkin Monera ne pathogenic kuma zai iya sa wani iri-iri cututtuka a cikin mutane, dabbobi da kuma shuke-shuke (dysentery, tonsillitis, da tarin fuka). Har ila yau, wasu kwayoyin rayuwa a symbiosis da eukaryotes (symbiogenesis), msl nitrogen kayyade tushen nodule kwayoyin cewa kafa mulkin mallaka a kan tushen da legumes.