The Nitrogen Cycle

Nitrogen is an essential constituent of animal and plant matter as it forms proteins, which are the building blocks of life. The ultimate source of nitrogen is atmospheric nitrogen but neither plants nor animals are capable of assimilating free nitrogen. Thus the process of converting atmospheric nitrogen to useful nitrogenous compounds by plants, passing it to animals and then the decomposition of these compounds to give back free nitrogen in the atmospheres is called Nitrogen Cycle

The following list of resources will support instruction for the Nitrogen Cycle:

United Streaming

Upon entering the United Streaming site, use the SEARCH engine and enter The Nitrogen Cycle. The first listing will has 8 segments and is an excellent introduction to this section.

1. Campbell Biology 7th Edition-After login, Chapter 37

2. Soil Organisms and the Nitrogen Cycle-General Objective: Understand the role of organisms that live in the soil and the nitrogen cycle.

3. The Nitrogen Cycle Poster and Lab Data

4. Chemistry Tutor-Nitrogen

5. Lab 2 Urban Ecology, Nitrogen Cycling in the Urban Ecosystem by Myrna Hall

6. Windows to the Universe-Nitrogen Cycle Activity