Gas exchange occurs at _______.
Understand the Problem
The question is asking about the specific location or mechanism through which gas exchange takes place in biological systems, such as in the lungs or at the cellular level.
Answer
The alveoli.
The final answer is the alveoli.
Answer for screen readers
The final answer is the alveoli.
More Information
Gas exchange primarily occurs in the alveoli, tiny air sacs in the lungs where oxygen is transferred to blood and carbon dioxide is expelled.
Tips
A common mistake is thinking gas exchange happens throughout the lungs, but it specifically occurs in the alveoli.
Sources
- Gas Exchange | Anatomy and Physiology II - Lumen Learning - courses.lumenlearning.com
- Gas exchange - Health Video: MedlinePlus Medical Encyclopedia - medlineplus.gov
- Exchanging Oxygen and Carbon Dioxide - Lung and Airway Disorders - merckmanuals.com
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