What is true for cyanobacteria?

Question

What is true for cyanobacteria? (A) Non-oxygenic without nitrogenase (B) Non-oxygenic with nitrogenase (C) Oxygenic with nitrogenase (D) Oxygenic without nitrogenase

Tardigrade Admin · Accepted Answer

Cyanobacteria are oxygenic photoautotrophs. Many members perform nitrogen fixation. Nostoc is a genus of cyanobacteria which is an oxygenic photosynthetic bacteria. The heterocysts present in it are specialized cyanobacterial cells for nitrogen fixation. It contains the enzyme nitrogenase.

Q. What is true for cyanobacteria?

Non-oxygenic without nitrogenase

Non-oxygenic with nitrogenase

Oxygenic with nitrogenase

Oxygenic without nitrogenase

Cyanobacteria are oxygenic photoautotrophs. Many members perform nitrogen fixation. Nostoc is a genus of cyanobacteria which is an oxygenic photosynthetic bacteria. The heterocysts present in it are specialized cyanobacterial cells for nitrogen fixation. It contains the enzyme nitrogenase.