Contractile vacuole da kuma ta aiki gabatarwar

Wannan labarin ya gabatar da mai karatu zuwa ga tsarin da sauki kwayoyin - wato, ta mayar da hankali a kan tsarin da contractile vacuole yin excretory (kuma ba kawai) aiki, zai yi magana game da ma'anar daga cikin sauki da kuma bayyana hanyoyin domin su zama a cikin yanayi.

Contractile vacuole. ra'ayi

Vacuole (daga Faransa vacuole, daga Latin kalma vacuus -. Blank), kananan siffar zobe cavities a shuka da dabbobi Kwayoyin ko unicellular kwayoyin. Contractile vacuole musamman na kowa daga sauki kwayoyin da cewa rayuwa a cikin sabo ruwa, misali, daga cikin protists kamar amoeba Proteus, Paramecium caudatum, wanda ya samu asalin sunan daga siffar jiki, kama da siffar da tafin takalma. Bugu da kari a wadannan sauki, m Tsarin da aka samu a cikin sel daban-daban ruwa tare Sponges, wanda ya kasance a cikin iyali spongillidae.

A tsarin da contractile vacuole. da fasali

Contractile vacuole ne matattarar wasu gabbansa, wanda ya yi aikin ejection wuce haddi ruwa daga cytoplasm. The location da kuma tsarin da wannan naúrar dabam a daban-daban kwayoyin. A hadaddun kumfa-ko tubular vacuoles kira Spong, da ruwa ya shiga cikin contractile vacuole. Saboda ci gaba da aiki da tsarin yana kiyaye barga cell girma. A protozoa da contractile vacuoles, wanda sune naúrar gudãnar da osmotic matsa lamba da kuma hidima ga sallame daga jiki lalata kayayyakin. kawai a jiki kunshi daya kawai cell, wanda, bi da bi, bayar da dukan zama dole ayyuka na rayuwa. Wakilai daga wannan subkingdoms kamar Paramecium caudatum, Amoeba Proteus, sauran unicellular mallaka dukan Properties m jiki.

The rawa daga cikin sauki kwayoyin

Cage ya aiwatar da muhimmanci ayyuka: selection, numfasawa, irritability, motsi, haifuwa, da kuma metabolism. Protozoa ne ubiquitous. A mafi girma yawan jinsunan rayuwa a cikin teku, da kuma sabo ne ruwa, da yawa zauna damp ƙasa na iya shafar shuka rayuwa a jikin kwayar dabbobi da mutane. A yanayi, kawai yin wani tsafta rawa, kamar yadda suke da hannu a cikin wurare dabam dabam na abubuwa, suna abinci ga dabbobin da yawa.

Contractile vacuole a Amoeba Proteus

Amoeba Proteus - wakilin aji rhizomes, ya aikata ba, da bambanci ga sauran mambobin na jiki na dindindin form. Motsi gaba via prolegs. Yanzu bari magance wadanda, abin da yake da aiki na contractile vacuole a amoebae. Wannan matakin tsari na osmotic matsa lamba a cikin ta cell. Ta ke Amoeba Proteus za a iya kafa a wani bangare na cell. Ta hanyar da matsanancin membrane na ruwa daga cikin yanayi gudana a cikin osmotically. A taro na solute a cikin cell amoeba fi a cikin yanayi. Saboda haka, a matsa lamba bambancin ciki da na farko Kwayoyin da kuma bayan. Contractile vacuole ayyuka a amoeba - wani irin tsotsa na'urar cewa jimloli da suka wuce haddi da ruwa daga cell protozoa. Fitar da yanayi Amoeba Proteus tara ruwa iya a wani rabo na jiki surface.

Irin wannan aiki na contractile vacuole ne m ga mafi sauki kwayoyin da cewa rayuwa a cikin sabo ruwa. A parasitic da marine siffofin da cewa rayuwa a cikin wani yanayi inda osmotic matsa lamba ne ya fi a sabo ruwa, wadannan m na'urorin an rage ko sosai da wuya yawanci mãsu fakowa ba. Around contractile vacuoles a mafi sauki kwayoyin mayar da hankali mitochondria haihuwa makamashi yin osmotic aiki.

Bayan osmoregulatory aikin wani m aiki na numfasawa, a sakamakon osmosis kai mai shigowa ruwa narkar da oxygen. Me kuma yake da aiki na contractile vacuole? Just yi excretory aiki, wato tare da ruwa samu rayuwa kayayyakin a cikin yanayi.

Numfashin selection osmoregulation a ciliates takalma

The jiki ne kawai ya rufe da wani m harsashi, wanda yana da m siffar. Yana ciyarwa a kan kwayoyin cuta, da kuma algae, ciki har da wasu protozoa. Ciliates kwayoyin ne mafi hadaddun fiye da na wani amoeba tsarin. A cikin cell, da gaba da raya takalma ne biyu contractile vacuoles. A wannan naúrar rarrabe tank, kuma da dama kananan tubules. Contractile vacuole kullum, godiya ga wannan tsarin (microtubule), a wani ajali wuri a cikin cell.

Babban aiki na contractile vacuoles a cikin rayuwar wakilin daga cikin sauki - osmoregulation, kamar yadda ta kawar daga sel da suka wuce haddi ruwa, wadda ta shiga cikin cell saboda osmosis. Da farko, akwai aka busa daga cikin manyan tashoshi, sa'an nan da ruwa ne pumped daga gare su a cikin wani na musamman tanki. Tafki an rage, ne rabu da sakamakon da tashoshi ta hanyar pores ruwa fuskantarsu. A cikin cell, ciliates ne biyu contractile vacuoles, wanda, bi da bi, da aiki a 'yan adawa. Saboda da aiki na biyu irin wannan na'urorin ya bayar a ci gaba da aiwatar. Bugu da kari, ruwa yana ci gaba da kẽwayãwa ta hanyar ayyukan contractile vacuoles. Suna alternately matsa da ƙanƙancewa mita dogara a kan yanayi zazzabi.

Saboda haka, a dakin da zazzabi (18 - 20 digiri Celsius), da mita na contractions na vacuoles, a cewar wasu 10-15 seconds. Kuma ba cewa halitta mazauninsu takalma ne wani sabo ruwa tare da tsaye ruwa da kuma gaban a cikinsu, daga rubabben kwayoyin halitta, da yawan zafin jiki na matsakaici a dama digiri dabam dangane da lokaci na shekara sabili da haka da mita na contractions iya isa 20-25 seconds. Daya hour contractile vacuole saukin m jħfa na sel a cikin wani adadin ruwa. jinsin da ta size. Su tara na gina jiki undigested abinci, rayuwa karshen kayayyakin, kuma za a iya gano oxygen da kuma nitrogen.

Ruwa mai guba da magani protozoa

Sakamako a kan wurare dabam dabam sauki abubuwa da sauƙi na bayar da muhimmanci. A Wuraren saboda da zuriya najasa, waddan a cikin manyan yawa kwayoyin. A sakamakon haka, akwai daban-daban protozoa wanda ake amfani a abinci da wadannan kwayoyin cuta, da kuma ta haka da taimako zuwa ga halitta tsaftacewa kududdufai.

ƙarshe

A duk da sauki tsarin wadannan guda-celled kwayoyin, jikin wanda aka yi sama da wata guda cell, amma shi aikin da ayyuka na dukan kwayoyin, banmamaki saba da yanayi. Yana iya ko da za a gani a cikin tsarin da contractile vacuole. Don kwanan wata, mun riga ya tabbatar da babban muhimmanci a cikin sauki yanayi da su sa hannu a cikin zagayowar kwayoyin halitta.