Passage VII
The amount of O2 present in blood and tissues can be measured, in mm Hg, as the partial pressure of O2 (
). The percent saturation of Hb is the percent of hemoglobin in the blood that is bound with O2. Figure 1 shows the relationship between percent saturation of Hb and , at normal body conditions.
Figure 2 shows the relationship between percent saturation of Hb and , at different pHs. The pH of blood is affected by the partial pressure of CO2 ().
Figure 3 shows the relationship between percent saturation of Hb and , at different blood temperatures.
39. Which of the following tables represents the assumptions about temperature and pH that would have to be made to properly interpret the data in Figures 1-3?
Your Answer is
Correct Answer is D
Explanation
In Figure 1, pH and temperature are not involved, indicating that pH and temperature are fixed at this time;
The variable in figure 2 is pH, while temperature is fixed;
The variable involved in p>figure 3 is temperature, and the pH is a fixed value