(a) Oxygenic with nitrogenase
(b) Oxygenic without nitrogenase
(c) Non-oxygenic with nitrognase
(d) Non-oxygenic without nitrogenase
[CBSE AIPMT 2001]
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What is true for cyanobacteria?
What is true for cyanobacteria?
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Correct Option (a) Reason : Cyanobacteria (Gk. Kyanos = dark blue; bakterion = a staff) also known as blue-green algae.
It is a very important group of photosynthetic bacteria in the history of life on earth.
The cyanobacteria fix atmospheric nitrogen through the help of enzyme nitrogenase and also show oxygenic photosynthetic.