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Questions
Some blue-green algae are used as bio fertilisers of their ______.
Some blue-green algae can be used as bio fertilisers as they are ______.
Options
Fix nitrogen
Are mucilaginous
Can glow everywhere
photosynthetic
MCQ
Fill in the Blanks
Solution
Some blue-green algae are used as bio fertilisers of their Fix nitrogen.
Explanation:
Using specialised cells known as heterocysts, some cyanobacteria can fix atmospheric nitrogen in anaerobic environments. These heterocyst-forming species are nitrogen fixers, capable of converting nitrogen gas into ammonia and nitrates, which can be absorbed by plants and transformed into proteins and nucleic acids because nitrogen cannot be absorbed directly by plants. As a result, some cyanobacterial species are used as biofertilizers.
shaalaa.com
Microbes as Biofertilizers
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