Breathing and Exchange of GasesEasy
Question
The figure given below shows a small part of human lung where exchange of gas takeplace. In which one of the options given below, the one part A, B, C or D is correctlyidentified along with its function.
Options
A.A __ Alveolar __ main site of exchane of respiratory gases
B.D __ Capillary __ exchange of and take place here
C.B __ Red bloo cell __ transport of mainly
D.C __ Arterial capillary __ passes oxygen to tissues
Solution
Alveoli are the primary sites of exchange of gases. The exchance of gases (O2 and CO2)between the alveoli and the blood occurs by simple diffusion.
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