Home › UP Board Class 10 › science › lifeprocesses › The exchange of gases between alveolar air and b…
The exchange of gases between alveolar air and blood occurs by
Afiltration
Bactive transport
Cdiffusion
Dosmosis
Answer & Solution
Correct answer: C. diffusion
O₂ and CO₂ move across the thin alveolar–capillary membrane by simple diffusion, down their partial-pressure gradients.
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