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What role do cyanobacteria play in paddy fields?
- a)They absorb phosphorus for plants.
- b)They fix atmospheric nitrogen, enriching soil fertility.
- c)They form root nodules in rice plants.
- d)They prevent soil erosion.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
What role do cyanobacteria play in paddy fields?a)They absorb phosphor...
Cyanobacteria, such as Anabaena, Nostoc, and Oscillatoria, are important biofertilizers in paddy fields because they fix atmospheric nitrogen, adding organic matter and increasing soil fertility. Therefore, Option B is correct.
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What role do cyanobacteria play in paddy fields?a)They absorb phosphor...
The Role of Cyanobacteria in Paddy Fields
Cyanobacteria, also known as blue-green algae, play a crucial role in enhancing soil fertility in paddy fields, primarily through their ability to fix atmospheric nitrogen.
Nitrogen Fixation
- Cyanobacteria possess specialized cells called heterocysts that enable them to convert atmospheric nitrogen (N2) into ammonia (NH3).
- This process enriches the soil with nitrogen, an essential nutrient for plant growth.
- Nitrogen is vital for synthesizing proteins, nucleic acids, and other cellular components in rice plants.
Benefits to Rice Cultivation
- By fixing nitrogen, cyanobacteria reduce the need for synthetic fertilizers, promoting sustainable agricultural practices.
- The organic matter produced by cyanobacteria also enhances soil structure, water retention, and microbial diversity.
- Their presence can lead to improved yields in rice cultivation due to better nutrient availability.
Interactions with Rice Plants
- Cyanobacteria coexist with rice plants in flooded conditions typical of paddy fields, where they thrive and contribute to the ecosystem.
- The symbiotic relationships formed can lead to enhanced nutrient uptake by rice roots.
Conclusion
In summary, the primary role of cyanobacteria in paddy fields is their ability to fix atmospheric nitrogen, thereby enriching soil fertility. This process not only supports rice growth but also promotes environmentally sustainable farming practices, making cyanobacteria valuable allies in agricultural ecosystems.
Cyanobacteria, also known as blue-green algae, play a crucial role in enhancing soil fertility in paddy fields, primarily through their ability to fix atmospheric nitrogen.
Nitrogen Fixation
- Cyanobacteria possess specialized cells called heterocysts that enable them to convert atmospheric nitrogen (N2) into ammonia (NH3).
- This process enriches the soil with nitrogen, an essential nutrient for plant growth.
- Nitrogen is vital for synthesizing proteins, nucleic acids, and other cellular components in rice plants.
Benefits to Rice Cultivation
- By fixing nitrogen, cyanobacteria reduce the need for synthetic fertilizers, promoting sustainable agricultural practices.
- The organic matter produced by cyanobacteria also enhances soil structure, water retention, and microbial diversity.
- Their presence can lead to improved yields in rice cultivation due to better nutrient availability.
Interactions with Rice Plants
- Cyanobacteria coexist with rice plants in flooded conditions typical of paddy fields, where they thrive and contribute to the ecosystem.
- The symbiotic relationships formed can lead to enhanced nutrient uptake by rice roots.
Conclusion
In summary, the primary role of cyanobacteria in paddy fields is their ability to fix atmospheric nitrogen, thereby enriching soil fertility. This process not only supports rice growth but also promotes environmentally sustainable farming practices, making cyanobacteria valuable allies in agricultural ecosystems.
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What role do cyanobacteria play in paddy fields?a)They absorb phosphorus for plants.b)They fix atmospheric nitrogen, enriching soil fertility.c)They form root nodules in rice plants.d)They prevent soil erosion.Correct answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about What role do cyanobacteria play in paddy fields?a)They absorb phosphorus for plants.b)They fix atmospheric nitrogen, enriching soil fertility.c)They form root nodules in rice plants.d)They prevent soil erosion.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What role do cyanobacteria play in paddy fields?a)They absorb phosphorus for plants.b)They fix atmospheric nitrogen, enriching soil fertility.c)They form root nodules in rice plants.d)They prevent soil erosion.Correct answer is option 'B'. Can you explain this answer?.
What role do cyanobacteria play in paddy fields?a)They absorb phosphorus for plants.b)They fix atmospheric nitrogen, enriching soil fertility.c)They form root nodules in rice plants.d)They prevent soil erosion.Correct answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about What role do cyanobacteria play in paddy fields?a)They absorb phosphorus for plants.b)They fix atmospheric nitrogen, enriching soil fertility.c)They form root nodules in rice plants.d)They prevent soil erosion.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What role do cyanobacteria play in paddy fields?a)They absorb phosphorus for plants.b)They fix atmospheric nitrogen, enriching soil fertility.c)They form root nodules in rice plants.d)They prevent soil erosion.Correct answer is option 'B'. Can you explain this answer?.
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