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प्रश्न
Explain, briefly the role of bacteria in nitrogen fixation.
उत्तर
Bacteria plays an important role in nitrogen fixation. There are two types of nitrogen-fixing bacteria.
1. Symbiotic bacteria: Rhizobium is a symbiotic bacteria living in root nodules of a leguminous plant which directly fix atmospheric nitrogen and convert them into nitrites and nitrates and make them available to the plant.
2. Free-living bacteria: Bacteria like Azatobacter and Clostridium live inside the soil and fix free nitrogen of the air and convert them into ammonia, amino- acids and proteins.
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संबंधित प्रश्न
Bacteria are no more classified as plants primarily because:
Which bacteria fixes nitrogen in the soil?
State the differences between pasteurization and sterilization.
Is tinned and sealed food always safe to eat? Give reasons in support of your answer.
Study the diagram given below and then answer the questions that follow:
Briefly describe how nitrogen of the atmosphere is converted to nitrates by leguminous plants.
Study the diagram given below and then answer the questions that follow:
Name the bacterium that converts
(i) ammonium compounds to nitrites
(ii) nitrites to nitrates
Study the diagram given below and then answer the questions that follow:
State how the nitrates in the soil get converted to nitrogen of the atmosphere.
Study the diagram given below and then answer the questions that follow:
Role of plants and animals in the formation of ammonium compounds.
The question has four options. Choose the correct answer:
Which fixes the atmospheric nitrogen?
