Single Answer MCQ
Q-00002114
How do gases like oxygen and carbon dioxide move in and out of the body during respiration?
1
Through photosynthesis
2
Through transportation
3
Through diffusion in the lungs
4
Through active transport in the blood
Answer and Solution
Answer
C. Through diffusion in the lungs
Solution:
During respiration, gases like oxygen and carbon dioxide move in and out of the body through diffusion in the lungs. Oxygen diffuses from the alveoli into the bloodstream, while carbon dioxide diffuses from the bloodstream into the alveoli for exhalation.
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