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When we breathe in air, nitrogen also go...

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

A

It moves alon with oxygen into the cells

B

It comes out with the `CO_(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.

Text Solution

Verified by Experts

The correct Answer is:
B
Elemental nitrogen in the atmosphere cannot be used directly by either plants or animals, and must be converted to a reduced state to be useful for higher plants and animals. Precipitation often contains little quantities of ammonium and nitrate resulting from nitrogen fixation by lightning. Certain specific bacteria possess nitrogenase enzymes that can fix atmospheric nitrogen into a form (ammonium ion) that is chemically useful to higher organisms.
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