Video: Vim li cas peb xav tau hemoglobin los nqa cov pa oxygen hauv koj cov ntshav?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hemoglobin nrog khi carbon dioxide thiab hydrogen ions yog nqa hauv ntshav rov qab mus rau lub ntsws, qhov uas nws tso cov hydrogen ions thiab carbon dioxide thiab rebinds cov pa . Yog li, hemoglobin cov pab rau thauj hydrogen ions thiab carbon dioxide ntxiv rau kev thauj mus los cov pa.
Zoo ib yam tuaj yeem nug, ua li cas hemoglobin nqa oxygen hauv cov ntshav?
Hemoglobin : Cov protein sab hauv liab ntshav cells (a) uas nqa oxygen rau cell thiab carbon dioxide rau lub ntsws yog hemoglobin cov (b). Hemoglobin yog tsim los ntawm plaub symmetrical subunits thiab plaub pawg heme. Hlau txuam nrog heme khi cov pa . Nws yog hlau nyob hauv hemoglobin cov uas muab ntshav nws cov xim liab
Qhov thib ob, ntau npaum li cas oxygen tuaj yeem nqa hemoglobin? Hemoglobin muaj ib cov pa -binding peev ntawm 1.34 mL O2 ib gram, uas nce tag nrho cov ntshav cov pa muaj peev xwm xya caum-npaug piv rau yaj cov pa hauv cov ntshav. Cov tsiaj txhu hemoglobin cov molecule ua tau khi ( nqa ) mus txog plaub cov pa molecules.
Ib qho ntxiv, yuav xa cov pa oxygen li cas rau hauv cov ntshav?
Cov pa nkag mus rau hauv cov ntshav hauv ob txoj hauv kev: Ib qho me me ntawm O 2 (1.5 feem pua) yog nqa hauv cov ntshav li cov roj yaj. Feem ntau cov pa (98.5 feem pua) nqa hauv ntshav yog khi rau cov protein hemoglobin liab ntshav hlwb. Ib qho ua kom tiav oxyhemoglobin (HbO 2) muaj 4 O 2 molecules txuas.
Vim li cas thiaj xav tau cov pa oxygen thauj mus los thoob plaws lub cev?
Cov protein hu ua hemoglobin hauv cov qe ntshav liab ces nqa mus oxygen nyob ib puag ncig koj lub cev . Los ntawm qhov ntawd nws tau tso rau hauv koj lub ntsws kom koj tuaj yeem nqus tau cov pa roj carbon dioxide thiab nqus pa ntau dua cov pa.
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