A) A - Alveolar cavity - main site of exchange of respiratory gases
B) D - Capillary wall - exchange of and takes place here
C) B - Red blood cell - transport of mainly
D) - Arterial capillary - passes oxygen to tissues
Correct Answer: A
Solution :
Alveoli are the primary sites of exchange of gases. The exchange of gases (\[{{O}_{2}}\] and \[C{{O}_{2}}\]) between the alveoli and the blood occurs by simple diffusion.You need to login to perform this action.
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