Kuyini rhizoids? Umsebenzi, isakhiwo, morphology

isitshalo ngasinye yakhiwa izingxenye ezintathu eziyinhloko: izimpande, isiqu kanye namahlamvu. Basuke oxhumene Indwangu conductive futhi kuqinisekiswe ukukhula evamile nokuthuthuka. Kodwa lesi kuphela izitshalo evolutionarily okuthuthukile. eziphilayo ezinjalo ephansi, efana wona, ulele futhi ulwelwe abakwazi ukuqhosha ezingeni lelisetulu ukuthuthukiswa, okusho ukuthi imizimba yabo yakhelwe lula kakhulu. Ngokwesibonelo, izimpande umsebenzi abasenzela rhizoids. Kuyini rhizoids e ulwelwe, wona kanye nezinye izinto eziphilayo bakudala athuthukile? Kuyini ukubaluleka kwemvelo?

Kuyini rhizoids? definition

Rhizoids - ingxenye filamentary izitshalo aphansi, amelela amaseli eyodwa noma ngaphezulu futhi enze impande umsebenzi. bavame kungekho nto enemibala emihle, emifushane (ubude kungenzeka akulinganiselwe amamilimitha angu ezimbalwa) hhayi eliqinile.

Uyini umehluko phakathi impande kanye rhizoids?

1. I rhizoids kungekho izindwangu conductive. Osmosis futhi ingress amanzi emzimbeni - lokhu ingenye imisebenzi ebaluleke kakhulu izimpande izitshalo. Uma kungekho komhlaba izakhiwo xylem futhi phloem, abakwazi kubhekwe izimpande kweqiniso.
2. Umehluko enkulu izilinganiso izimpande futhi rhizoids. Uma wangaphambili ongafinyelela amashumi budze kanye imitha ububanzi, le rhizoids ezincane, ngezinye izikhathi ngisho ukwakheka ezincane.
3. Umsuka - iqoqo inqwaba kwamangqamuzana nezicubu. Rhizoids yena, kungenzeka ezakhiwe eziningana noma kuseli eyodwa, kuye ngokuthi imisebenzi.

Nokho, omunye ukufana kungabonwa ngokushesha: impande, futhi rhizoids enze umsebenzi okubambelela - ukubamba lesi sitshalo umzimba enhlabathini. Kodwa ngisho lapha ungacacisa ukuthi impande kuphumelela kangcono ukubhekana nalesi umsebenzi kuka rhizoids.

Nokho rhizoids kukhona uhlobo kuyisandulela izimpande kweqiniso. Lezi zokwakheka inqubo yokuziphendukela kwemvelo emenza uhlobo olusha, ngakho kukhona ezibaluleke kakhulu ngokuya nezilwane, kanye ukuheha isithakazelo ososayensi, izazi zezitshalo zaqala ukusola. Yilokho rhizoids eziphilayo.

imisebenzi rhizoids

Ukubaluleka kwala izakhiwo eziphilayo akugcini indima enkulu inqubo yokuziphendukela kwemvelo. Rhizoids futhi enze eminye imisebenzi ephathelene ne-ukusekela ukukhula kanye nokuthuthukiswa wona, ulele, ulwelwe. Phakathi kwabo:

1. Bamba ingxenye eyinhloko simila enhlabathini noma amanzi phansi, esimweni ulwelwe.
2. Negesi lokushintshisana futhi ziba ngcono inhlabathi.
3. Ukugwema ukuthintana ne amanzi angadingeki amaconsi amanzi kakhulu.
4. amanzi ukumuncwa.

Lena imisebenzi ezivame kakhulu ongenza rhizoids ulwelwe kanye wona.

izinhlobo rhizoids

Akubona bonke izakhiwo komhlaba wona kanye ulwelwe ngokufanayo. Ngisho phakathi izakhiwo lelula waphawula lunye kuncike Imisebenzi nesakhiwo. Kuyini rhizoids futhi lokho abayikho emvelweni?

Rhizoids kungenzeka bushelelezi (elula) kanye nolimi. Esokuqala izakhiwo ezivamile komhlaba, okuyinto abakhonza zokumelana okunamathiselwe isitshalo futhi silondoloze baxhashazwe yayo.

Reed rhizoids zinezikhathi ngalolo ubukhulu yabo mncane, izindonga izacile futhi mihlobiso. Ngaphakathi kwalezi nezakhiwo neziqu waphawula efana papillae noma izilimi, yingakho amagama abo. Umsebenzi lezi rhizoids - kuyinto ukugeleza kwamanzi by capillary action, esizwa i ijamo obungajwayelekile.

Futhi, ekuhloleni "wazizwa" kungatholakala rhizoids futhi izinguqulo Lesisemkhatsini zalezi zakhiwo, okuyinto ofake izici ezifana analogue bushelelezi nomhlanga. Yilokho rhizoids ngokuya ukuhlukahluka izakhiwo.

Kwezinye izinto eziphilayo zingatholakala rhizoids?

Ngaphambili, wona kanye ulwelwe ziphathwa kuya aphansi izitshalo, ngoba zabo isakhiwo kwaba evolutionarily kancane athuthukile kunangesikhathi spore nenzalo izitshalo. Zonke abameleli umbuso ulele nazo waphawula rhizoids, ngoba lokhu umzimba siwukuba nobuhlobo iqala ubuhlobo bokubambisana phakathi ulwelwe nesikhunta. By endleleni, futhi amanye amalungu alo isikhunta futhi yakha rhizoids.

Akuwona wonke wona abe lezi zakhiwo ngomshoshaphansi. Ngokwesibonelo, sphagnum, okuyinto uhlala le amaxhaphozi, edonsa amanzi kulo ebusweni umzimba, ngokulandelana, kulesi simo, ukwakheka rhizoids akudingekile. Isimo siyefana zonke wona sfagnumnyh.

Uyini umehluko phakathi rhizoids futhi rizomoidami?

Safunda ukuthi rhizoids futhi iyiphi indima badlala ngesikhathi ukuvela wonke umuntu azalwa nakho. Nokho, kukhona izakhiwo Lesisemkhatsini komhlaba ezisebusweni isitebhisi yokuziphendukela kwemvelo phakathi rhizoids futhi rhizomes. Kumayelana rizomoidah - olunye uhlobo lwesakhiwo impande ngaphezulu eziphilayo kuka moss noma ulwelwe athuthukile.

Rizomoidy amelela rhizomes eyandulela Izinhlobo kanye moss. Basuke ezakhiwe beluka rhizoids eziningana eduze ngakho sengathi ungomunye isakhiwo okuqhubekayo. Nokho, akuzona izimpande kweqiniso ngenxa yesizathu esifanayo njengoba rhizoids ka wona, ulwelwe kanye ulele. Manje kusobala ukuthi rhizoids okunjalo futhi uyini umehluko phakathi kwawo rizomoidov.