Euglena green - isityalo okanye isilwanyana?

Euglena oluhlaza - a isilwanyana kweseli olunye-, ezifumaneka fresh elingakhuliyo amanzi, umgxobhozo, emaquleni, izadunge. Umbala umxholo umzimba ngenxa yenani elikhulu chloroplasts kwi icytoplasm. Ngoko ke, kubonakala ukuba amanzi "esezansi" xa ngokugqithiseleyo ihlanjululwa euglena omanzi kuyo.

Isakhiwo kube kancinci nzima ngakumbi xa kuthelekiswa amoeba. Bobabini ukuba protoplasm kunye isiqalo. Kodwa euglena eluhlaza ngaphandle umaleko pellicle sisasetyenziswayo wambu - esingxotyeni salo bhetyebhetye. Umzimba imilo efana osimelela ngentonga, yaba buthuntu kwelinye icala side - nenye. Ukususela lekhefu phambili amagqabi yomsila encinane. Kukho kwakhona i red "iliso" okuqaqambileyo enza ukuba ubakhanyisele yaye ngaloo ndlela kunceda iseli ukukhetha indlela intshukumo. Okulandelayo kuso vacuoles. Ngenxa iqokobhe etywiniweyo engaphandle shape isilwanyana ayenziwanga kakhulu zatshintsha, mhlawumbi kancinane kuphela, ngaphakathi kwemida ethile, ukuba compress kwaye ukuqondisa. Esi sakhiwo kuhlaba green Euglena kunye nendlela ezihambayo. Msila ukwenza iintshukumo ejikelezayo, sisidalwa ngemikroskopu kunokuba ngokukhawuleza isecaleni. Kukho iintlobo ezenza undulation umzimba ukuze abhabhe. Kutheni oku kuyenzeka akucaci. Izazi macebiso ezimbini kulo mba. Kwelinye icala, kusenokuba kukho ubudlelwane phakathi organelles kunye Euglena zixhobo neprothini ezo phantsi pellicle kwaye nciphisa. Kwelinye icala, olu hlobo intshukumo unokubangwa yencindi secreted yi kwiseli.

Euglena badle ayikwazi eluhlaza kunye isilwanyana nesityalo. Le ndlela, apho ukhetha ixhomekeke ukukhanyisa. kukho icytoplasm yayo abangaphezulu kwama amabini iiseli okweqanda - chromatophores. Bona, njengoko sele kuchaziwe, kwaye ndasidyobha iiseli in green. Emva kwemini, esebenzisa yiklorofili equlethwe chromatophores, euglena eluhlaza bakwazi ukuthatha inxaxheba photosynthesis, icarbon befunda kufuneka ngokunjalo izityalo - carbon dioxide. Ngaloo emzimbeni wayo ukusuka inorganics baseka zimbiwa efana starch kwaye ifakwe ngohlobo iinkozo kweli kukho icytoplasm. Ebusuku, lo seli nga sinokubanamandla ngendlela efanayo njengoko isilwanyana. Kuyinto olukwazi usebenzisa vacuoles nangoko kusingathwa izinto eziphilayo apho esele ngokwaneleyo ngendlela yachithwa ezingamadama. Ngoko wenza i amoeba. Kunye nokungahoywa echibini, kokukhona kwezi izinto ezingaphezulu. Ukuba euglena eluhlaza na ebumnyameni ixesha elide, i yiklorofili uyanyamalala chromatophores. Ngako oko, kombala liyalahleka kunye ebuhlanti, kubhaliwe decolorized ngokupheleleyo.

Kukho iintlobo ukuba ngokubanzi photosynthesis nemvelo, bangayidlayo izilwanyana kuphela. Bade iphuhlise uhlobo mouthparts ukuba nokudla ngamasuntswana ukutya ngemikroskopu.

Ukukhetha le lomzimba uyakwazi amandla kwakhona ibonisa ukuba izazinzulu ukuba izilwanyana kunye nezityalo kufuneka imvelaphi efanayo.

euglena ekhuthazwa oluhlaza kwisahlulo longitudinal yeseli ngokwayo; emveni kokuba kukho icytoplasm wahlulwa ube ziziqingatha ezibini kwaye engundoqo. Mntu ngamnye wabonakala ekhula yomsila entsha. Xa iimeko zivuma, Euglena eluhlaza yabola kakhulu kangangokuba amanzi nayo iba umbala efanelekileyo. Kukho ezinye iintlobo zezi elilodwa olunye-ukuba siya-, ngokuphawulekayo siqheliswe ngakumbi ukuba sibenokuphila nkqu kule ngqele. Ngenxa yoko lohlengahlengiso enjalo ngexesha yokuzala ikhephu babo ubunzima ipeyintwe kuphela eluhlaza; kodwa bomvu, qanda, nkqu oluhlaza.

Kukho kwakhona euglena ogama iiseli zigcwele carotene. Bona zipeyintwe amachibi ebomvu okanye umbala omdaka. .. Xa imilambo, amachibi, imigxobhozo, njl atshe okanye ngumkhenkce, euglena eluhlaza ulahlekelwa iflagellum, lisondezwe, Bathiwe wambu iqokobhe ububanzi - ngexesha uguqulwe ube cyst. Kule fomu ukuba ungalinda iimeko kakuhle kwi ndawo enye okanye wayisa kunye eluthulini.