Breathing and Exchange of GasesHard
Question
Gaseous exchange between blood and alveolar air across respiratory membrane occurs by :
Options
A.Osmosis
B.Diffusion
C.active transport
D.Phagocytosis
Solution
-Alveoli are the primary sites of exchange of gases. Exchange of gases also
occur between blood and tissues. O2 and CO2 are exchanged in these
sites by simple diffusion
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