The exchange of gases in the alveoli of the lungs taker, place by

(a) simple diffusion 

(b) osmosis

(c) active transport 

(d) passive transport

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1 Answers

Correct Option (a) simple diffusion

Explanation:

Oxygen diffuses from alveoli to deoxygenated blood and CO2 diffuses from deoxygenated blood to alveoli by simple diffusion. Diffusion is defined as, the flow of the substance (gases) from a region of their higher concentration to a region of lower concentration.

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