For normal gas exchange in the tissues, which of the following is true regarding carbon dioxide and oxygen?
Understand the Problem
The questions are asking about the process of gas exchange in tissues, specifically regarding the movement of carbon dioxide and oxygen based on their partial pressures in the blood and tissues. It requires an understanding of physiological principles related to respiration.
Answer
26: b), 27: a).
The final answer for question 26 is b) and for question 27 is a).
Answer for screen readers
The final answer for question 26 is b) and for question 27 is a).
More Information
Carbon dioxide (CO2) diffuses out of the tissues into the blood as PCO2 is higher in the tissues. Oxygen (O2) diffuses from blood to the tissues, as PO2 is higher in the blood.
Tips
A common mistake is confusing the direction of gas exchange. Remember, gases move from areas of higher to lower partial pressure.
Sources
- Gas Exchange | Anatomy and Physiology II - Lumen Learning - courses.lumenlearning.com
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