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प्रश्न
What is a heterocyst?
Give the role of a heterocyst.
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उत्तर
The Blue Green Algae (BGA) have some specialized colourless cells called heterocysts which are the sites of nitrogen fixation.
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संबंधित प्रश्न
Your advice is sought to improve the nitrogen content of the soil to be used for cultivation of a non-leguminous terrestrial crop.
- Recommend two microbes that can enrich the soil with nitrogen.
- Why do leguminous crops not require such enrichment of the soil?
Define biofertilizers. Give two types of fungal biofertilizers
How does the activity of each one of the following help in organic farming?
Cyanobacteria
Define estuary.
Which of the following is one of the basic elements considered in green revolution?
VAM is a type of ______
Which one of the following statement is correctly matched?
Azolla is used as biofertiliser because it ______.
Which cyanobacterium lives in association with the water fern Azolla and is widely used in paddy fields?
What is the fundamental characteristic that defines biofertilizers as living organisms?
