Metabolism of Nitrogen
Metabolism of Nitrogen: Overview
This topic covers concepts such as Sources of Nitrogen Oxides, Nitrogenase Enzyme, Nitrogen Metabolism, Biological Nitrogen Fixation, Nitrogen Fixation by Free Living Bacteria, Symbiotic Biological Nitrogen Fixation, etc.
Important Questions on Metabolism of Nitrogen
Leghaemoglobin helps in:

The exudation of xylem sap drops on the edges of leaves is called

What does xylem sap mainly contains ?

Xylem sap shows the presence of mineral salts?

What are the stages of the nitrogen cycle ?

What is nitrogen fixation ?

How does xylem transport sap?

What is the role of xylem sap?


Chemical nitrogen fixation is used in _____ process.

Explain the chemical nitrogen fixation.

Physical nitrogen fixation occurs due to lightning or thunder.

Describe physical nitrogen fixation.

Write a short note on nitrate assimilation.

Ammonia is combined with some organic acid to form amino acid.

Nitrate assimilation involves

Fill in the blank with the correct answer from the bracket.
_____ is the most important source of nitrogen to the plant. (Ammonia, Nitrate, Nitrite)

The transfer of the amino group to a keto acid is called transamination.

Fill in the blank withe the correct option from the bracket.
If a farmer adds Azotobacter culture to the soil before sowing maize, _____ mineral element is being replenished. (potassium, calcium, nitrogen)

With regard to the biological nitrogen fixation by Rhizobium in leguminous plant, which one of the following statement/statements does not hold true.
