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  • When we breathe in air, nitrogen also goes inside along with oxygen. What is the fate of this nitrogen?

When we breathe in air, nitrogen also goes inside along with oxygen. What is the fate of this nitrogen?

(a) It moves along with oxygen into the cells
(b) It comes out with theCO_{2} during exhalation
(c) It is absorbed only by the nasal cells
(d) Nitrogen concentration is already more in the cells so it is not at all absorbed.

Answers (1)

Answer: B

Solution.

Nitrogen is the most abundant gas in nature hence while inhalation nitrogen goes inside our body along with oxygen.
The composition of inhaled air is 20.94 \% oxygen, 0.04 \%carbon dioxide, 79.02 \% nitrogen and trace gases. The composition of exhaled air is 16.49 \% oxygen, 4.49 \% carbon dioxide, 79.02 \% nitrogen and other trace gases. As the exhaled nitrogen is equal to inhaled nitrogen, we can conclude that it is not utilized by our body and is exhaled along with carbon dioxide.

Hence, the correct option of this question is option B

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infoexpert26

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