Respiring tissue Capillary blood cO Dissolved CO2 gas 广一co2+ plasma protein+ Carbamino compounds 23% cO co2+H Hbco, Chloride shift c 70% Co2 cO+0、AH H2CO3+HCO3 +H+ 98.5% 2 O2+HHb+HbO2 +H 0 m1.5% 2 Dissolved Oz gas