This cycle shows how nitrogen moves from atmosphere to living beings (plants and animals) and then back to atmosphere

Nitrogen Cycle - Steps explained.jpg

 

Let’s see what happens in the Nitrogen Cycle

Atmosphere Has 78% Nitrogen

Nitrogen gets fixed by

  • Rhizobium bacteria
  • Blue Green Algae
  • Lightning

 

Note: Rhizobium Bacteria lives in roots of pea plant(leguminous plant) which convert nitrogen in air into Nitrogenous Compounds(Nutrients)

 

Thus, Nitrogen in air gets converted into Nitrogen Compounds, which are nutrients for the soil

 

Plants Take Nitrogen

 

Plants Consume These Nutrients



Animals Eats Plants

Animals Eats Plants And Get Nitrogen

Both Plants And Animal Die/Excrete Waste

Bacteria converts the waste into Nitrogen air

 

Nitrogen goes back to atmosphere and cycle is repeated

  1. Class 8
  2. Chapter 2 Class 8 - Microorganisms : Friend and Foe

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.