Q. The structure present in cynobacteria (BGA) that helping in nitrogen fixation is

A) Haplosperm
B) Holostrum
C) Holotrema
D) Heterocyst
Explanation

Cyanobacteria or blue-green algae have the quality to fix atmospheric nitrogen. It is possible due to presence of heterocysts.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.