Nitrogen Cycle, by Sara Jane

The nitrogen cycle is vital for life on earth. Animals depend on nitrogen, and nitrogen can be found almost anywhere. A cycle takes place that flows nitrogen through earth and life. This nitrogen cycle affects humans and animals tremendously.

            Nitrogen is virtually everywhere and organisms are dependent on it. Animals, plants, and humans all use nitrogen to control metabolism normality and biochemical normality. Without nitrogen, most organisms could not function. The air that supports life is composed of about 79% nitrogen. However, humans and animals cannot use nitrogen in its gaseous state. Plants store up nitrate ions for energy. Animals and humans eat these plants for energy, therefore consuming these nitrate ions as well. Nitrogen can also be processed into proteins; if an animal is eaten by a human, the protein from this animal supplies the human body with nitrogen.

            This nitrogen is processed through living organisms and the natural world. The nitrogen cycle starts with the atmosphere, which contains air. As aforementioned, the air is composed of 79% of nitrogen. The plants soak up the nitrogen as nitrate ions through the air. Animals and humans eat these plants, providing them with the nitrogen they need. When a living organism dies or disposes of waste, the nitrogen goes into the soil. Through weather, the soil and nitrogen can be picked up by runoff and into water. Water is evaporated to the atmosphere, and thus begins the cycle again.

            Why does the nitrogen cycle affect animals and humans? The nitrogen cycle creates a large portion of food sources for animals and humans. Nitrogen is essential for living organisms because of its metabolic and biochemical properties. Animals or humans without nitrogen develop nitrogen deficiencies. Nitrogen creates hormones that regulate the human body.  Cellar growth is attributed to nitrogen. Not having nitrogen will cause a lack of hormones and cellar growth as well as unbalance the metabolic and biochemical process. Malnutrition can cause nitrogen deficiencies as well as a poor diet. The nitrogen cycle provides a source of nitrogen as organisms cannot use nitrogen in a gaseous state.

            The nitrogen cycle is fundamental in life and normality on earth. Living organisms depend on nitrogen, and the nitrogen cycle provides the source. Nitrogen effects life to a great amount.

  

Sources:

N/a. "The Nitrogen Cycle." The Nitrogen Cycle. N/a, 23 Sept. 2003. Web. 16 Sept. 2015. <http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/N/NitrogenCycle.html>.

N/A, Salina. "Nitrogen Deficiency Symptoms: Treatment For Deficiency Of Nitrogen." Tandurust. Social Apps, 11 May 2011. Web. 16 Sept. 2015. <http://www.tandurust.com/alternativetherapies/nitrogen-deficiency-treatment.html>.