Ko te mahi o te membrane wē o te pūtau

Ko te membrane wē - bilayer lipid ki integrated i roto i ona pūmua matotoru, awa katote, me ngā rāpoi ngota receptor. Tenei arai aunoa e wehe te cytoplasm i te wāhi pericellular, i te wa ano te anake te kōrero ki te taiao o waho. A no te mea cytolemma ko tetahi o te hanganga tino nui o te pūtau, a ka tukua ona mahi ki te tīariari reira, ka taunekeneke ki ētahi atu rōpū pūtau.

Ko te whakaaro whānui o te tsitolemmy mahi

Te membrane wē i roto i te puka i roto i te mea reira hakari i roto i te pūtau kararehe, āhuatanga hoki te plurality o kaiao i kingitanga rerekē. Huakita me te kararehe pūtau, ko te pūtau kotahi nei tinana, ko te membrane cytoplasmic. Na kararehe, harore me otaota rite nga kaiao multicellular kihai i ngaro i te reira i roto i te akoranga o te kukuwhatanga. Heoi, tsitolemmy nga kingitanga rerekē o kaiao ora ahua rerekē, ahakoa ko te taua tonu tona mahi. Ka taea te wehea ratou ki ngā rōpū e toru: rohe, waka me te kōrero.

Ko te rōpū wehewehe mahi ngā tiaki pūkaha o ngā pūtau, te pupuri ona āhua, tiaki i te reo wahopūtau. waka membrane whai te rōpū mahi i te aroaro o pūmua motuhake, awa katote me transporters etahi matū. E tsitolemmy mahi kōrerorero tika ki te kawe i te receptor. I runga i te mata membrane complexes receptor töpü vai e nei e whai wāhi pūtau i roto i te humoral pūhanga whakawhiti mōhiohio. Heoi, e mea faufaa hoki taua cytolemma karapoti te pūtau kore anake, engari ano hoki etahi o ona organelles membranous. I roto i a ratou, nui ia te tūranga taua rite i roto i te take o te pūtau katoa.

mahi arai

Ko te mahi arai o te maha wē membrane. tiaki te reira i te taiao pūtau ā-ki te kukū ngā o ngā matū matū i runga i ona huringa. I roto i rongoā o te tūringiringi puta tukanga, i.e. whaiaro-whakatikatikanga o te kukū i waenganui i pāpāho ki te ihirangi rerekē o etahi matū. Plasmolemma tika āraia e te ārai i te tūringiringi o te nāianei inu me ngā katote i roto i ngā tohutohu katoa. Ko te kupu, whakawhāiti te membrane te cytoplasm ki te tetahi kukū o kawehiko i te taiao pericellular.

He faaiteraa tuarua o te arai mahi o te membrane wē - he tiaki i kaha tikanga kawakore waikawa me te kaha. Plasmolemma hangaia i roto i te ara taua e fehangahangai nga pito o te rāpoi ngota lipid hydrophobic waho. No te mea kua maha titore reira i waenganui i intracellular me te pāpāho wahopūtau ki rerekē tohu pH. E mea titauhia no te mahi pūtau.

Ko te mahi arai o te kiriuhi organelle

He rerekē te mahi arai o te membrane wē no te whakawhirinaki ratou ki runga ki tona wāhi. I roto i te karyotheca ngā, arā lipid bilayer matua, tiaki te reira i te kino aunoa me te taiao ngā i cytoplasmic karihi. Ano, kua whakapono ai e He mea paihere karyotheca ki te membrane o te kiriuwhi. No te mea whakaaro te pūnaha katoa e piri tonu me te pātaka o te mōhiohio ā-ira, pūnaha pūmua synthesizing me tautau posttranslational whakarereke o te rāpoi ngota pūmua. Ko te membrane whatunga cytoplasmic tika ki te pupuri i te āhua o takere waka intracellular roto e neke nga rāpoi ngota pūmua, lipid me te warowaihā.

kiriuhi punaraungao tiaki te pungaraungao me plastid - chloroplasts. mahi hoki Lysosomal membrane rite te arai: roto lysosomes pH taiao kaitaua, me ngā puka kaha o te hāora e taea tūkino hanganga i roto i te pūtau, ki te reira te î. Ko te membrane Ko te arai ao, i te wa ano tukua nga lysosomes ki "ngaungau" te matūriki mārō, me te tauwhāiti te wahi o te mahi o whākōkī.

plasmolemma mahi Mechanical

Ko hoki te mahi pūkaha o te membrane wē kore kākahu. Tuatahi, pupuritia cytolemma hanga pūtau. Tuarua, tauwhāiti reira te deformability o ngā pūtau, engari e kore e aukati i te huringa o te āhua me te flowability. I te wa ano e whakakaha ana i te membrane he taea ano hoki. puta tenei e tika ana ki te hanganga o taiepa pūtau protists, huakita, otaota me te harore. I roto i te kararehe, tae atu i roto i nga momo tangata, ko te māmā te taiepa pūtau, a kanohi glycocalyx anake.

I roto i te huakita, glycoprotein reira i roto i te tipu - cellulose, harore - chitin. Diatoms a tino whakaurua i roto i tona taiepa pūtau o te silica (silicon waikura), e tino whakanuia ana te kaha me te ātete ngā pūtau aunoa. Na e hiahia ana nga taiepa pūtau tinana reira mo tenei. He cytolemma ano he kaha nui raro atu i te papanga o proteoglycans, cellulose chitin ranei. I roto i taua tsitolemmy whai wāhi aunoa, kahore feaa.

Ano, ko te mahi pūkaha o te membrane wē tukua te pungaraungao, chloroplasts, lysosomes, karihi, me te mahi kiriuwhi i roto i ngā pūtau ka tiakina ki kino subthreshold. Ko reira āhuatanga hoki tetahi organelles membranous raraunga pūtau he. Ano, ko te membrane wē ko protuberances cytoplasmic, e kua hangaia e hoapā pūtau-pūtau. Ko tēnei tauira o te mahi pūkaha o te membrane wē. whakarite te tūranga paruru o te membrane te hoki e tika ana ki te ātete tūturu me fluidity o te bilayer lipid.

mahi kōrerorero o te membrane cytoplasmic

I roto i te mahi kōrerorero kia ngā te waka, me te fariiraa. He motuhake ki te membrane wē me te karyotheca ēnei huru maitatai e rua. E kore e te organelle membrane i nga wa katoa receptors, ranei momo ana ki takere waka, me i karyotheca me tsitolemmy enei ngā reira. meatia tenei te roto i to ratou whakatinanatanga o ngā mahi kōrero raraunga.

te kitenga o Transport e rua tikanga ka taea: pūngao whakapaunga, e ko, he ara kaha, a kahore te utu, tūringiringi ohie. Heoi, kia kawe te pūtau matū me i phagocytosis pinocytosis ranei. rite tenei e hopu i te kapua o wai matūriki totoka ranei protrusions cytoplasm. Katahi te pūtau rite te mea te matūriki faaû ringa droplet wai ranei, toia ia roto, me te hanga a tawhio noa te paparanga cytoplasmic.

waka Hohe, tūringiringi

waka hohe - ko te tauira o te absorption whiriwhiri o electrolytes me ngā matūkai tenei. Via takere motuhake kanohi e rāpoi ngota pūmua tito o subunits maha, te ô i te taonga katote hydrated ranei ki te cytoplasm. E whakaurua Hona huri moe, me ngā matūkai i roto i te mekameka pūkoro. Na whai wāhi mātātoa te katoa o enei mahi i roto i te membrane wē pūtau ki tona tupu me te whanaketanga.

lipid-wairewa

pūtau Tino rerekëtanga, hei tauira, io, endocrine uaua ranei, takere katote whakamahi i te raraunga ki te whakaputa moe mahi me era atu. Kei te hanga e te reira e tika ana ki te rerekētanga osmotic me kaha iahiko me papanga rite ki te holomui, ranei ki te whakaputa i te pini kawe ki te urupare ki tohu ranei te tuku ia ratou. Ko te tikanga nui mō te whakawhitiwhiti kōrero i waenganui i te pūtau, e niu nei i te ture manavasii o nga mahi o te rauropi katoa tenei. Enei āhuatanga o te membrane wē o ngā pūtau kararehe whakarato ture o mahi faufaa, tiaki me te transportation o te rauropi katoa.

a taea ētahi matū tomo e i roto i te membrane, engari ko reira angamaheni anake hoki rāpoi lipophilic o ngā rāpoi ngota ngako-wairewa. Ratou tareka noa i roto i te membrane bilayer, ngāwari whiwhi ki te cytoplasm. He āhuatanga o hormones pūtaiaki tenei tikanga waka. He hanganga o hormones peptide e taea ki te tomo i roto i te membrane, engari te tuku ano hoki pūtau mōhiohio. tutuki ana tēnei te tika ki te aroaro o te receptor i runga i te plasmolemma mata (wāhi) rāpoi ngota. E pā ana tikanga matüora o tohu transduction ki te karihi tahi ki te huarahi o te kătahi tika o matū i roto i te membrane lipid ko te pūnaha ohie ture humoral. Na he tika enei āhuatanga katoa wē wāhi pūmua membrane ki te pūtau kotahi, me te kaiao katoa e kore anake.

mahi Ripanga membrane cytoplasmic

Ko te ara tino kitea ki te whakanui i te mahi o te membrane wē - he tepu e kei tona tūranga koiora mo te pūtau rite te katoa.

mārama E whakaatu ana tēnei ripanga e mahi e whakamana e te membrane wē. Heoi, kei te takaro enei tūranga e anake te membrane pūtau, arā, te bilayer lipid e karapoti pūtau katoa. Roto reira i reira he organelles, ano nei i te membrane. kia whakahuatia to ratou tūranga i roto i te puka o te hoahoa.

Ko te mahi o te membrane wē: te kaupapa

I roto i te aroaro o kiriuhi pūtau e whai ake organelles rerekē: te karihi, taratara, me te maheni kiriuwhi, Golgi taputapu, pungaraungao, chloroplasts, lysosomes. I roto i ia o enei organelles, membrane whai wāhi hira. A feruri i te tauira e taea e te reira i te kaupapa ripa.

Ko te kiriuhi o ngā pūtau kararehe

Ko nga mahi o te membrane wē o te pūtau, te wahi nui reira he wāhi nui mō ia organelle enei. Ano, he maha o ngā mahi ki te kia ngā ki tetahi - i roto i te tiaki. I roto i ngā, e ngā te arai, me te mahi pūkaha i roto i te paruru. Ano, ko te mahi o te membrane wē i roto i te pūtau tipu e tata ōrite ki te hunga i roto i te kararehe, me te kitakita.

Ko te tino matatini, me te tino rerekëtanga pūtau kararehe. He he nui atu integrated, poluintegralnyh me te mata pūmua. I roto i te whānui, i roto i kaiao multicellular e tonu hanganga membrane atu uaua atu i taua o pūtau-tahi. A he aha te nuinga o te membrane wē o ngā pūtau motuhake e whakatau ka ahakoa kia whakaritea ai ki te epithelial, kiko tūhonohono ka hikaka ranei.