Which of the following species does not have the ability to fix atmospheric nitrogen?
A
Azotobactor
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Anabaena
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Nostoc
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Spirogyra
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is D
Spirogyra
Some microbes have the ability to fix atmospheric nitrogen and convert it into a usable form that plants can make use of. These microbes are of two types, free-living and symbiotic. Nostoc, Anabaena, Azorobacter are free-living bacteria that fix nitrogen in the soil. Spirogyra on the other hand is type of a blue green algae that does not have the ability to fix atmospheric nitrogen.