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Video: Bicarbonate ua haujlwm li cas?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov bicarbonate hmoov -cov carbonic acid tsis pub ua haujlwm zoo ib yam li phosphate buffers . Cov bicarbonate hmoov tau tswj hwm hauv cov ntshav los ntawm sodium, ib yam li phosphate ions. Thaum sodium bicarbonate hmoov (NCO3), tuaj rau hauv kev sib cuag nrog cov kua qaub uas muaj zog, xws li HCl, carbonic acid (H2CO3), uas yog cov kua qaub tsis muaj zog, thiab NaCl tau tsim.
Yog li ntawd, bicarbonate ua tus tsis nyob hauv cov ntshav li cas?
Thaum nyob hauv ntshav , bicarbonate hmoov ion ua haujlwm rau neutralize acid qhia rau ntshav los ntawm lwm cov txheej txheem hauv kev zom zaub mov (piv txwv li lactic acid, ketone lub cev); Ib yam li ntawd, txhua lub hauv paus (xws li urea los ntawm catabolism ntawm cov protein) yog neutralized los ntawm carbonic acid (H.2CO3).
Ib tug kuj yuav nug, vim li cas bicarbonate nce pH? Sodium bicarbonate hmoov muaj alkaline pH ntawm 8.4 thiab yog li ntawd tuaj yeem tsa koj cov ntshav pH me ntsis. Ntshav dua pH tso cai rau cov kua qaub txav los ntawm cov leeg nqaij mus rau hauv cov hlab ntshav, rov qab los pH rau 7.0. Qhov no ua rau cov leeg txuas ntxiv kev cog lus thiab tsim lub zog (1, 4).
Hauv qhov no, h2co3 ua raws li qhov tsis zoo li cas?
Kev piav qhia: Cov roj carbonic acid - bicarbonate tsis pub system muaj carbonic acid, acid tsis muaj zog, thiab bicarbonate anion, nws cov hauv paus sib txuas. Ib yam nkaus, yog tias muaj lub hauv paus muaj txiaj ntsig tau qhia, nws yuav cuam tshuam nrog carbonic acid los tsim cov bicarbonate anion, yog li txo qhov muaj peev xwm nce hauv pH.
Lub cev ua bicarbonate li cas?
Bicarbonate , tseem hu ua HCO3, yog cov khoom tsim los ntawm koj cev metabolism. Koj cov ntshav coj bicarbonate hmoov mus rau koj lub ntsws, thiab tom qab ntawd nws tau nqus tawm ua cov pa roj carbon dioxide. Koj ob lub raum kuj pab tswj bicarbonate hmoov . Bicarbonate tau tso tawm thiab rov ua dua los ntawm koj ob lub raum.
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Bicarbonate-carbonic acid buffer ua haujlwm zoo ib yam li phosphate buffers. Cov bicarbonate tau tswj hwm hauv cov ntshav los ntawm sodium, ib yam li phosphate ions. Thaum sodium bicarbonate (NaHCO3), los rau hauv kev sib cuag nrog cov kua qaub, xws li HCl, carbonic acid (H2CO3), uas yog cov kua qaub tsis muaj zog, thiab NaCl tau tsim
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Lub bicarbonate-carbonic acid tsis ua haujlwm zoo ib yam li phosphate buffers. Cov bicarbonate tau tswj hwm hauv cov ntshav los ntawm sodium, ib yam li phosphate ions. Thaum sodium bicarbonate (NaHCO3), los rau hauv kev sib cuag nrog cov kua qaub, xws li HCl, carbonic acid (H2CO3), uas yog cov kua qaub tsis muaj zog, thiab NaCl tau tsim