By converting CO₂ to H₂CO₃, carbonic anhydrase _______the PCO₂ in endothelial cells, red blood cells, and plasma, thereby _______ diffusion of CO₂ from tissue cells to these locations.

Question

Quizplus · Accepted Answer

The addition of CO₃ to the peptide sequence indicates that carbonic anhydrase has catalyzed the conversion of CO2 and water to HCO3- and H+. HCO3- is represented as CO₂ in the peptide sequence. The conversion of CO2 to HCO3- by carbonic anhydrase in endothelial cells, red blood cells, and plasma helps to maintain the pH balance in the blood. By converting CO₂ to HCO3-, carbonic anhydrase reduces the concentration of CO2 and increases the concentration of HCO3-. This facilitates the diffusion of CO2 from the tissue cells to these locations. Therefore, choice A, "reduces; facilitating" is the best choice.

By Converting CO2 to H2CO3, Carbonic Anhydrase _______The PCO2 in Endothelial

By Converting CO₂ to H₂CO₃, Carbonic Anhydrase _______The PCO₂ in Endothelial