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प्रश्न
What is the principle underlying the use of cyanobacteria in agricultural fields for crop improvement?
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उत्तर
Cyanobacteria are capable of fixing nitrogen with the help of specialised cells called the heterocyst. They enrich soil fertility. Hence BGA’s are used in agricultural fields. E.g. Colonies of Nostoc and Anabaena grow in Paddy fields.
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संबंधित प्रश्न
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Define the following:
Gram negative and Gram positive bacteria
Explain briefly:
Spore formation is a survival technique not a mode of reproduction in bacteria.
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Write short notes on:
Shape of bacteria
The question has four options. Choose the correct answer:
Which scientist first discovered the bacteria?
All bacteria have flagella.
Name the bacteria used in the production of vinegar.
Write a short note on bacteria and its structure.
Identify the Archaebacterium
Identify the incorrect statement about the Gram positive bacteria
______ are considered to be the first living organisms on earth.
Which one of the following is not an antibiotic derived from Bacteria?
The bacterial cell was covered by a strong cell wall made up of ______.
______ bacteria live on dead organic matter.
Assertion: Some bacteria may be non-motile.
Reason: Bacteria have a special structure called flagella which are found on cell surfaces.
What is bacteria?
Bacteria reproduces by ______.
