The Nitrogen Cycle: Definition, Facts & Steps


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question 1 of 3

All of the following are stops along the nitrogen cycle, except:

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1. Bacteria that live on the roots of some plants and change nitrogen into ammonium are called:

2. When ammonium is changed into nitrates, it is called:

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About This Quiz & Worksheet

Some of the questions on the quiz are complete the sentence style queries. The questions will give you definitions and you will need to select the correct term. Other questions will give you terms and you will have to identify characteristics of the terms. All are in reference to the biological process of the nitrogen cycle.

Quiz & Worksheet Goals

You will be tested on these topics:

  • Nitrogen-fixing bacteria
  • The nitrogen cycle
  • Bacteria that change nitrogen into ammonium
  • Ammonium changed into nitrates

Skills Practiced

You will practice these skills:

  • Making connections - use understanding of the concept of the nitrogen cycle
  • Interpreting information - verify that you can read information regarding the nitrogen cycle and interpret it correctly
  • Information recall - access the knowledge you've gained regarding ammonification
  • Knowledge application - use your knowledge to answer questions about nitrogen fixers

Additional Learning

You should also make sure to read the related lesson, The Nitrogen Cycle: Definition, Facts & Steps. This lesson will help you master different aspects of the material. It covers these objectives:

  • Define and explore the steps of the nitrogen cycle
  • Understand the many parts of the nitrogen cycle
  • Describe nitrogen-fixers, nitrogen fixation, and nitrification
  • Characterize assimilation, denitrification, and ammonification