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A free living nitrogen fixing cyanobacterium which also forms symbiotic association with Azolla is
Options
(a) Anabaena
(b) Nostoc
(c) Chlorella
(d) Tolypothrix
Correct Answer:
Anabaena
Explanation:
Anabaena azollae resides in the leaf cavities of the fern Anabaena. It fixes nitrogen. A part of the fixed nitrogen is excreted in the cavities and becomes available to the fern. The decaying fern plants release the same for utilization of the rice plants.
Anabaena is a genus of filamentous cyanobacteria that exist as plankton. They are known for nitrogen-fixing abilities, and they form symbiotic relationships with certain plants, such as the mosquito fern.
Related Questions: - Choose the wrong statement about excretion
- PCR and Restriction Fragment Length Polymorphism are the methods for :
- Pollination by bats is called
- The natural cycles of carbon, oxygen, nitrogen, water and phosphorus, sulphur, etc
- In India, tropical rain forests are found in
Topics: Microbes in Human Welfare
(63)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Choose the wrong statement about excretion
- PCR and Restriction Fragment Length Polymorphism are the methods for :
- Pollination by bats is called
- The natural cycles of carbon, oxygen, nitrogen, water and phosphorus, sulphur, etc
- In India, tropical rain forests are found in
Topics: Microbes in Human Welfare (63)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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