He aha te mea te kaha osmotic

Rerewai i huaina unilateral tūringiringi māhorahora o ngā rāpoi ngota whakarewa i roto i te membrane semipermeable i te takiwa, iti iho ki te otinga atu takiwa. kiriuhi hītari ko tetahi i te mea permeable ki te whakarewa me te impermeable ki ngā pūtau rewa ki reira matūriki. Na roto i te tatararaa, te kaha osmotic - ko reira te pēhanga hydrostatic, te tono o nei ki te otinga ko ki te aukati i te tūringiringi o te matūriki, arā rerewai.

he whānui i roto i te natura rerewai. He rawe ki ki kaiao koiora katoa ia. puta kaha osmotic ka wehea rongoā e te membrane semipermeable. Hei tauira, tangohia kei roto i te pūtau, me te wāhi inu wahopūtau. Tikanga, te kaha osmotic wahopūtau, me te intracellular o te taua. Otiia, ki te inu interstitial ngaro pēhanga wai piki roto. I raro i te mahi o te wai pēhanga tiketike i te pūtau osmotic tīmata ki te haaparare i ki te wāhi wahopūtau. Tūringiringi mutu anake, no te te tiaro uara pēhanga.

He aha e whakatau te kaha osmotic

Pressure i te rerewai tei runga i matūriki rewanga te nui i roto ia rōrahi wae. Ka taea e ēnei hei rāpoi ngota, katote ranei ētahi atu matūriki colloidal. Ka taea e tatou te mea e te kaha osmotic o te otinga e tika ana ki te kukū o matūriki o rewanga kaha i roto i te rōrahi kōwae. Ko te āhuatanga matū o te whakarewa me te matū rewa i roto i reira, e kore e te reira.

Kua kitea Scientists e pupuri te kaha osmotic te taua ture rite te pēhanga hau. taea ana te ruri te reira ki mea i huaina osmometers. Ko ratou he ahua motuhake o gauges pēhanga. E whakamahia ana ēnei mea membrane semipermeable o kararehe, me te take mai waihanga. inenga pēhanga whakaatu he fakafalala tika ki runga ki te kukū o te otinga.

Ture kaha osmotic, tuwhera Van Hoff, kī e tona uara numera rite ki tenei pēhanga, e pai ai te taonga o te otinga te i te kotahi pāmahana mo te hau pai ki te, kia āhei e kia rite ki te rōrahi o te otinga tona hōkai.

whakaahua ana te reira i te whārite ture: p = CRT i

uara pakiha whakarea isotonic ;

C - kukū o te wairewa, whakahuatia i roto i kiore;

R - ao haurehu tonu uara;

T - te pāmahana wera.

Ko te uara mō te kaha osmotic o kaiao ora

Ko tūturu i roto i te āhua ora rerewai, rite tipu me te kararehe ngā pūtau katoa i te membrane permeable ki te wai, me te impermeable ki ētahi atu matū. I roto i te kiko ora, i runga i te rohe o ngā pūtau me te inu intercellular, kaha osmotic tamau. E whakarato ana ara o ngā matūkai me te wai i te whenua ki nga rau o te tipu, me te tipu turgor, mahi faufaa o ngā pūtau.

Ko te rongoā ka te taua osmotic pēhanga, ka karanga isotonic. Ko te hunga i roto i te mea teitei te pēhanga, ka karanga hypertonic, raro - hypotonic.

Ko te kaha osmotic o toto tangata i roto i te moni o 7.7 atm. E taea e ki te ite i te feaa iti reira Kaiwhakamahi. Hei tauira, i runga i te fariiraa i te kai tote matewai he e pā ana ki tona hua. whakatika hoki edema Local ki mumura tika ki te pēhanga ara osmotic i te pae o te mumura.

he tika hoki e mau ana i roto i pitihana Knowledge o nga ture o te kaha osmotic i roto i te rongoā. Ko te kupu, rata mohiotia e kia whakamahia ai nga minitatanga rō-uaua wē anake otinga isotonic o 0.9% NaCl. e kore e meinga e te reira i kiko ritenga. Engari, Kei te whakamahia hypertonic 3-5% NaCl mo pai microorganisms purea i patunga purulent me te pirau.

Mohio o te ture o te rerewai ko e tika ana e kore anake i roto i te rongoā, me te koiora. Te kore e kore e taea e rave i te reira e rave rahi momo o mahi a te tangata, tae atu ahumahi me te pūngao.