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

It moves along with oxygen into the cells.

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It comes out with the

C O_{2}

during exhalation.

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It is absorbed only by the nasal cells.

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Nitrogen concentration is already more in the cells so it is not at all absorbed.

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Solution

The correct option is D It comes out with the $C O_{2}$ during exhalation.
Breathing is an act of ventilating a respiratory surface with air. Breathing is usually accomplished through muscular movements that can be divided into inspiration (intake of air ) and expiration (outflow of air). 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. The nitrogen is an inert gas, during breathing, there is no change in nitrogen percentage in inhaled as compared to exhaled air.

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Similar questions

Q. Question 17
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 the

C O_{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.

When we inhale, we take air into our lungs. what do we breathe out during exhalation? options A :carbon dioxide option B: Nitrogen option C:Oxygen option

D: a mixture of gases that has more carbon dioxide than inhaled air optionE: a and c

Q. During inhalation, we take in air containing many gases but our body uses only oxygen. Which is the gas that is exhaled out?

During exhalation the air that is given out is rich in oxygen.

$K O_{2}$ finds use in breathing equipment to safeguard the user to breathe in oxygen generated internally in the apparatus without being exposed to toxic fumes outside. The supply of oxygen is due to :

i.Slow decomposition of $K O_{2}$

ii.reaction of superoxide with moisture in the exhaled air

iii.reaction of $K O_{2}$ with $C O_{2}$ in the exhaled air

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