Which of these statements correctly describes the percent of haemoglobin saturation? A)It decreases as P_O2 increases. B)It decreases as body temperature decreases. C) It decreases as H⁺ decreases. D) It decreases as P_CO2 increases.

Question

Quizplus · Accepted Answer

The statement that correctly describes the percent of haemoglobin saturation is that it decreases as P_CO2 increases. This is because carbon dioxide competes with oxygen for binding to haemoglobin and as the concentration of carbon dioxide in the blood increases, it pulls more oxygen off of hemoglobin, resulting in a decrease in the percent saturation of hemoglobin.

Which of These Statements Correctly Describes the Percent of Haemoglobin