explain the mechanism of gaseous exchange between tissues and blood
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The mechanism of gaseous exchange between tissues and blood is as follows:
The blood reaching the tissues has higher concentration of oxygen than in the cells so it gets diffused into the cells.
The carbon dioxide, which is formed in the cells, gets accumulated in higher concentration as compared in the blood, so it easily diffuses into the blood.
The blood with CO2 takes this gas to the lungs, from where it is expelled out during exhalation.
The blood reaching the tissues has higher concentration of oxygen than in the cells so it gets diffused into the cells.
The carbon dioxide, which is formed in the cells, gets accumulated in higher concentration as compared in the blood, so it easily diffuses into the blood.
The blood with CO2 takes this gas to the lungs, from where it is expelled out during exhalation.
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