The lowest PO2 would normally be found in what location?
a. Arterial blood
b. Atmospheric air
c. Cells
d. Venous blood
ANS: C
The intracellular PO2 (approximately 5 mm Hg) provides the final gradient for oxygen (O2) diffu-sion into the cell.
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Which of the following statements regarding roof construction is MOST accurate?
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a. True b. False Indicate whether the statement is true or false