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Nitrogen is integral to the production of protein and DNA. Discover how it is present on Earth in a constant cycle and how nitrogen from the air enters the food chain.Key facts
- The nitrogen cycle describes the path of nitrogen through nature.
- Nitrogen is essential for life, and it is found in amino acids, proteins and DNA.
- Nitrogen is the most abundant element in the atmosphere.
- Nitrogen gas must be "fixed" so it can be used by living organisms.
Transcript
Nitrogen is an essential part of proteins and DNA. Without nitrogen, life as we know it couldn't exist.
Our atmosphere = 78% nitrogen
It's all around us in the air, but plants and animals can't use nitrogen directly.
Nitrogen is converted from nitrogen gas into other nitrogen compounds, and recycled in the environment …
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