Video: Puas yog co2 nqa los ntawm hemoglobin?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hemoglobin tuaj yeem khi rau plaub lub molecules ntawm carbon dioxide . Yog li ntawd, ib hemoglobin molecule tuaj yeem thauj plaub carbon dioxide molecules rov qab mus rau lub ntsws, qhov uas lawv raug tso tawm thaum cov qauv hloov pauv rov mus rau daim ntawv oxyhemoglobin.
Tsuas yog li ntawd, puas hemoglobin nqa co2?
Hemoglobin : Cov protein hauv cov qe ntshav liab (a) uas nqa oxygen rau cell thiab carbon dioxide mus rau lub ntsws yog hemoglobin (b). Hemoglobin yog tsim los ntawm plaub symmetrical subunits thiab plaub pawg heme. Qhov no yog vim qhov hemoglobin molecule hloov nws cov duab, lossis hloov pauv, raws li cov pa oxygen khi.
Ib yam nkaus, ntau npaum li cas co2 yog hemoglobin khi? Thauj khoom ntawm Cov pa roj carbon dioxide Hauv Ntshav Txog 5 txog 7 feem pua ntawm tag nrho carbon dioxide yog yaj nyob rau hauv lub plasma. Thib ob, carbon dioxide tuaj yeem khi rau plasma proteins lossis tuaj yeem nkag mus rau cov qe ntshav liab thiab khi rau hemoglobin . Daim ntawv no thauj txog 10 feem pua ntawm cov carbon dioxide.
Tsis tas li ntawd, carbon dioxide thauj mus rau hauv cov ntshav li cas?
Cov pa roj carbon dioxide tuaj yeem yog thauj dhau ntawm ntshav ntawm peb txoj kev. Nws yog yaj ncaj qha rau hauv lub ntshav , khi rau plasma proteins los yog hemoglobin, los yog hloov mus rau hauv bicarbonate. Feem coob ntawm carbon dioxide raug thauj mus los ua ib feem ntawm cov txheej txheem bicarbonate. Cov pa roj carbon dioxide diffuses rau hauv liab ntshav hlwb.
Muaj pes tsawg carbon dioxide nyob hauv cov ntshav khi rau hemoglobin?
Cov pa roj carbon dioxide thauj mus rau hauv cov ntshav los ntawm cov ntaub so ntswg mus rau lub ntsws nyob rau hauv peb txoj kev: 1 (i) yaj nyob rau hauv kev daws; (ii) buffered nrog dej ua carbonic acid; (iii) khi rau cov protein, tshwj xeeb hemoglobin . Kwv yees li 75% ntawm carbon dioxide yog thauj hauv cov liab ntshav cell thiab 25% hauv cov ntshav.
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