Nitrogen Fixing Bacteria

Question 1

Ntrobacter

Answer 1

Nitrite fixing bacteria.
Oxidizes nitrites to nitrates.
Increases nitrate availability to plants.

Question 2

Nitrosomonas

Answer 2

Ammonia oxidizing bacteria (AOB)

Converts ammonium to nitrite.

Question 3

Azotobacter

Answer 3

Free-living nitrogen fixing bacteria.
Binds atmospheric nitrogen which is in accessible to plants.
Releases it in form of ammonium ions into soil

Question 4

Rhizobium bacterium

Answer 4

Found in soil.
Helps fix atmospheric nitrogen in leguminous plants.
Attaches to roots and produces nodules.
Convert it into ammonia for plant growth and development.

Question 5

Denitrifying bacteria

Answer 5

Pseudomonas

Micrococcus dentrificans