Bayyana tsari na abinci narkewa da hydra: siffofi da Physiology na coelenterates

"Bayyana tsari na narkewa abinci da hydra" - yin irin wannan aiki zai ba duk ba. Bayan makaranta ilmin dabbobi shakka ba ma daki-daki, ga la'akari da al'amarin. Tare, bari mu refresh mu ilmi kuma dubi yadda na hydra ciyarwa.

Tsarin fasali na Hydra

Ruwa tare hydra ne na hali wakilin da irin Coelenterata. Yana da wani misali na wani kwayar dabba binciken yadda wannan din hadin kai. Jikin siffar Hydra yayi kama da kananan zangarniya, wanda aka a haɗe da tushe. Suna iya zama a matsayin kasa na kandami, kankara ko wasu substrate. A free karshen na jiki located tentacles. Tare da ƙarfi hydra ke farauta ita kananan cikin ruwa dabbobi kamar ciliates, kananan crustaceans ko wani lokaci ma kifi soya.

Kwarewa na sel

Mu ci gaba da yin aikin "bayyana tsari na narkewa abinci da hydra". Don gane da wannan tambaya, ka farko gano yadda za a tsara wannan dabba. Duk da cewa da hydra ne mai kwayar kwayoyin, yanzu masana'anta ta na da ba. Amma ta jiki da aka kafa shi ne ba iri daya ba, kuma musamman Kwayoyin, kowane irin wanda ya aikata ta aiki. Saboda haka, tare da taimakon fata da kuma tsoka Hydra motsa. Amma da jijiya Kwayoyin warwatse ko'ina cikin jiki, za'ayi da dangantaka da yanayi. Akwai jiki na hydra da gametes - qwai da maniyyi. Sun gudanar da wani tsari na jima'i haifuwa coelenterates.

Abin da kuma yadda za a ciyar da a kan Hydra

Kananan-celled da vertebrate dabbobi, wanda matsawa kusa da ruwa tare hydra, ne mata sauqi ganima. Animal kama su tare da tentacles da kuma aika a cikin hanji lumen domin kara narkewa. Amma kafin wannan dabba paralyzes da ganima. Features Hydra ne a gaban harbin Kwayoyin. Kowace daga cikinsu ta ƙunshi wani kwantena a cikin abin da Twisted thread. Top harbin cell ne m gashi. Idan ya zo ga wanda aka azabtar, da thread jũya kuma yi tsananin bugãwa da tunkuɗa su zuwa cikin jiki. Tare da wannan, a samar da guba shiga jiki, shi ne gaba daya paraliziruyuschy. Harbin cell aikin ta aiki ne kawai sau daya, sa'an nan ya mutu. Amma a jikin hydra nan da nan ya bayyana sabon. Wannan shi ne saboda da rabo daga ilimi Kwayoyin, wanda ba Yunƙurin ga duk sauran iri.

hanji rami

Saboda haka, godiya ga hadewa aikin na tentacles da kuma harbin Kwayoyin samar ne gaba ɗaya a cikin hanji lumen na hydra. Ga shi fallasa su enzymes glandular Kwayoyin. Sun samar da nazarin halittu catalysts, a karkashin mataki na wanda wani babban ɓangare na abinci karya guntu-guntu. An ce, tsarin narkewa kamar na iri daban-daban Wakilai Coelenterates rufe irin. Yana da quite m, a cikin tsarin da aka wakilta kawai bakin bude da kuma cikin hanji kogo. A sauran sassan sun bata. Wannan yana nufin cewa undigested abinci tarkace an cire ta bakin. Hakika, wannan narkewa kamar tsarin ne quite sauki da kuma m. Duk da haka, idan muka yi la'akari da al'amarin a cikin haske juyin halitta, za mu iya ganin da m fasali. Idan na farko kwayar dabbobi - jaws - Power tacewa aiwatar wakilta edible barbashi daga cikin ruwa, da hydra da kansa farauta, shi yana da wani analogue gland da kuma daukawa fitar da wani sinadaran magani na abinci. Saboda haka da cewa tsarin za a iya daukan wani wahala da ido tsirara. A nan mun partially kusata da a amsa "bayyana tsari na narkewa abinci da hydra".

salula narkewa

Amma rami hanji narkewa aiwatar a hydra, kamar duk coelenterates ba iyakance. Bayan da rarrabuwa a cikin kananan niƙaƙƙun barbashi anã gitta su a wasu musamman abokai. Wannan narkewa kamar Kwayoyin da aka samu a ciki Layer na jiki na ruwa tare hydra. Suna da nasu flagella, wanda suke iya samar da ruwan rafi. Tare da shi da abinci ya kai surface daga wadannan Kwayoyin. Next, ansu rubuce-rubucen ta arya kafar. Kamar wancan ne da abinci a ciki shi ne na musamman Kwayoyin. Wannan wuri ne da mataki na karshe na narkewa tsari. Ya ƙare a cikin narkewa kamar vacuoles amfani hydrolytic enzymes. Yana kuma kafa undigested sharan an cire ta bakin.

Saboda haka, domin ruwa tare hydra lokaci guda hankula narkewa daga iri biyu: cavernous da kuma salon salula. A farko ya auku a cikin hanji lumen via glandular Kwayoyin asirce enzymes ga narkewa abinci. Na biyu shi ne karshe mataki. Shi ne halayyar qware Kwayoyin da kuma narkewa kamar vacuoles. Ina ganin cewa, yanzu da aiki "bayyana tsari na narkewa abinci da hydra" ba zai haifar da wani matsala.