Who can explain the physiological role of nitrogen in the air?
Well,
In nature, two principal processes of nitrogen fixation are known. One is the action of electrical energy on the atmosphere, which dissociates nitrogen and oxygen molecules, allowing the free atoms to form nitric oxide, NO, and nitrogen dioxide, NO2. Nitrogen dioxide then reacts with water as follows:
The nitric acid, HNO3, dissolves and comes to Earth with rain as a very dilute solution. In the time it becomes part of the combined nitrogen of the soil, where it is neutralized, becoming nitrites and nitrates. The nitrogen content of cultivated soil is generally enriched and renewed artificially by fertilizers containing nitrates and ammonium salts. Excretion and decay of animals and plants return nitrogen compounds to the soil and air, and some bacteria in soil decompose nitrogen compounds and return the element to the air.
The other principal process of natural nitrogen fixation is that certain plants and vegetables can convert atmospheric nitrogen directly into nitrogen compounds.
Regards
OK. I agree. What significance can this have for the human body?
Maybe humans can also fix nitrogen air?
Nitrogen is one of the primary nutrients critical for the survival of all living organisms. Although nitrogen is very abundant in the atmosphere, it is largely inaccessible in this form to most organisms. All plants utilize nitrogen (N) in the form of NO3- and NH4+. It is most imperative element for proper growth and development of plants which significantly increases and enhances the yield and its quality by playing a vital role in biochemical and physiological functions of plant. Excretion and decay of animals and plants return nitrogen compounds to the soil and air, and some bacteria in soil decompose nitrogen compounds and return the element to the air. ... This enables the excess nitrogen to be released harmlessly through the lungs without forming bubbles.Organic nitrogen compounds are physiologically active. Most living organisms cannot utilize nitrogen directly and must have access to its compounds. Therefore the fixation of nitrogen is vitally important. In nature, two principal processes of nitrogen fixation are known. One is the action of electrical energy on the atmosphere, which dissociates nitrogen and oxygen molecules, allowing the free atoms to form nitric oxide, NO, and nitrogen dioxide, NO2. Nitrogen dioxides.
Fine. I agree. I formulate the question as follows. Are there any conditions when the human body (animals) can use nitrogen from the air? And as?
Dear Alexander, here is an older paper from Dr. J. Argyll Campbell, maybe it will help you: Campbell JA, Hill L. Concerning the amount of nitrogen gas in the tissues and its removal by breathing almost pure oxygen. J Physiol 1931;71(3):309-322. https://physoc.onlinelibrary.wiley.com/doi/pdf/10.1113/jphysiol.1931.sp002735
Best regards and stay healthy, Martin
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