Single Answer MCQ
Q-00020142
What happens to the diffusion of gases in the lungs during exercise?
1
It slows down.
2
It remains unchanged.
3
It enhances.
4
It becomes inefficient.
Answer and Solution
Answer
C. It enhances.
Solution:
During exercise, the demand for oxygen increases, enhancing the diffusion of gases in the lungs due to increased surface area and blood flow. Thus, 'It enhances.' is correct.
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