Biology
Grade-7
Easy

Question

Nitrogen is converted before it can be utilized by plants. This process is known as

  1. Nitrification
  2. Denitrification
  3. Nitrogen fixation
  4. Immobilization

Hint:

Rhizobium is responsible for this process.

The correct answer is: Nitrogen fixation


    • Nitrogen is important for the normal growth and metabolism of plants
    • Nitrogen deficiency can be observed as chlorosis in plants
    • Atmospheric nitrogen cannot be utilized by plants as such
    • Nitrogen is converted into its derivatives by a process called nitrogen fixation
    • In leguminous plants, nitrogen fixation occurs through a bacteria called rhizobium  which is present in the form of nodules in the roots of the plants

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