Me Volvox ake magana a kai a matsayin single-celled kwayoyin? A tsarin da Volvox algae

A duniya akwai da yawa ban mamaki microscopic kwayoyin. Idan wani ya zo a cikin kaina jerin bakwai al'ajabi daga cikin takaice, da Volvox algae, haƙĩƙa, dã sun hada da a cikin wannan jerin.

kore algae

Volvox - a kore algae. Sun zama a cikin nau'i na mazauna. Me Volvox ake magana a kai a matsayin single-celled kwayoyin? Amsar da shawara da kanta ne quite sauki: kowane guda kadan tsiren ruwan teku, kuma shi ne mai cell cewa yana da biyu flagella da dankon.

Single Kwayoyin suna da alaka da bakin ciki strands na cytoplasm da juna, wanda damar mallaka to iyo a cikin unison. Mutane daya-daya da wakilan fãce hairs da flagella ma da kananan ja tabo, wani da ake kira ido.

cell bambantawa bada musamman algae wakilan. Kowane mallaka yana da wani mafari kuma kawo karshen, a cikin wasu kalmomi, Arewa da Kudu zura sandunan ɗaukarsa. A farko yankin da ya gani a mafi pronounced jari na ci gaba buds. Wannan taimaka da algae zuwa iyo zuwa ga haske. Saboda haka, a mallaka na single-celled kwayoyin a cikin bayyanar iya da kyau wuce na kwayar kwayoyin.

Volvox: tsarin

Lokacin da aka tambaye dalilin da ya sa Volvox ake magana a kai a matsayin single-celled kwayoyin, shi ne daraja ambata cewa guda cell iya zama har zuwa 2 millimeters a diamita (a girma mazauna - har zuwa 2 cm), don haka za su iya samun sauƙin gani da ido tsirara. Wasu algae suna da alaka da bakin ciki filaments na cytoplasm.

Volvox algae da fairly sauki tsarin. A tsakiyar rami cike da gamsai. All Kwayoyin suna da biyu flagella, wanda aka makala a gaban karshen. Kowane cell a cikin cell aikin ta aiki da abinci mai gina jiki, da kuma numfasawa tukar tumbi. A siffar iya zama mai siffar zobe, elliptical, ko m. A matsanancin Layer ne ma rufe da gamsai. Kowane cell yana da guda ido a cikin nau'i na wani tabo a kan ƙarshen gaban.

haifuwa

algae Volvox haifuwa hanyoyi quite ban sha'awa da kuma ko da m. Sun iya haifa biyu asexually da kuma jima'i. Bayan kusa dubawa za ka iya ganin cewa, mafi yawan mazauna ne a takamaiman yankunan, wanda ake kira gonads.

Wannan shi ne wata ãyã daga sake yiwuwar tohowarsu. Gonads daga Kwayoyin girma a kusa da ekweita na mallaka. Wadannan Kwayoyin girma da kuma sha jerin ƙungiyoyin har suka samar da kananan duniyoyin. A wannan yanayin, da flagella ne a cikin sabon da'irar. Don cire su, da cell Dole ne ka kashe kanka daga cikin.

Volvox iya haifa kansu a matsayin jima'i. Kamar sake yiwuwar tohowarsu, musamman Kwayoyin tara a kusa da ekweita. Namiji da ta mace ya halicce mazauna na daban-daban jam sel.

Maniyyi Kwayoyin suna kafa ta division. Mace jima'i Kwayoyin ba raba, amma kawai kara a size. Mai jinsunan da biyu namiji da mace mazauna. Wasu suna dauke da lalurar mata.

Volvox da hasken rana

Kallo na kungiyoyin na mazauna a karkashin wani haske microscope ne da gaske m gani. Idan ka bar isa sararin samaniya a karkashin hula ga barinta, da kadan kore duniyoyin fara sannu a hankali taso kan ruwa wajen backlight.

Volvox ne mai sauqi ka samu. Duk da suke bukatar su - shi ke kyawawan tsabta da kuma dumi ruwa, arziki a gina jiki. A da kyau lokaci zuwa kalla - bazara. Scooping up 'yan kore samfurori za a iya gani a matsayin banki da ruwa na "kandami blooming" algae za a janyo hankalin zuwa ga haske.

mazauninsu

Me Volvox ake magana a kai a matsayin single-celled kwayoyin? Bari mu fuskanci shi. Volvox yana da guda-celled tsarin, shi ba zai iya zama a cikin kadaici, don haka sau da yawa suranta siffar zobe mazauna na zuwa 50 000 mutane. Ba kawai da cell ne a microscopic kwayoyin. Yana faruwa ta m tafiyar matakai. Shi ya sa Volvox ake magana a kai a matsayin single-celled kwayoyin.

M mazauninsu na wadannan algae ne sabo ruwa. Wadannan kananan kwayoyin halitta suna samu a cikin tafkunan, ramuka, kuma ko da a cikin kududdufi waha. Volvox algae suna daga cikin tsofaffin a duniya. Bisa ga zaton da masana kimiyya, da mulkin mallaka hanyar rayuwa, suka kasance har yanzu miliyan 200 da suka wuce.

Volvox - mafi cigaban kwayoyin na irin. Yana Forms wani mai siffar zobe, ellipsoid ko ovoid mallaka. A algal Kwayoyin dauke da chlorophyll, don haka su kansu samar da abinci ta hanyar photosynthesis. Kowane mutum cell aiki ga mai kyau na mallaka, kuma tare suka yi aiki a matsayin guda kwayoyin.