Which one of the following is not a free living nitrogen fixing bacterium?

Azotobacter

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Anabaena azollae

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Pseudomonas

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Cyanobacterium

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Azotobacter
Nitrogen fixation is the conversion of atmospheric nitrogen into nitrates and ammonia by nitrogen-fixing bacteria.
Pseudomonas is not involved in nitrogen fixation.
Azotobacter, Anabaena azollae, Cyanobacterium are free-living nitrogen-fixing bacteria.
So, the correct answer is 'Pseudomonas'.

Suggest Corrections