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The Nitrobacter and Nitrocystis...

The Nitrobacter and Nitrocystis

A

oxidise nitrite to nitrate

B

oxidise nitrate

C

reduce nitrite

D

reduce nitrate

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TRUEMAN BIOLOGY-MINERAL NUTRITION-MULTIPLE CHOICE QUESTIONS
  1. Plants that have mutualistic relations with nitrogen-fixing bacteria ...

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  2. Nitrosomonas and Nitrosococcus promote

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  3. The Nitrobacter and Nitrocystis

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  4. Reduction is the term used when conversion of ……… takes place

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  5. Certain bacteria living in the soil poor in oxygen convert nitrates in...

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  6. Bacteria which break down the dead organisms of the soil into nitrogen...

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  7. The nodules in a plant root where nitrogen fixing bacteria live forms ...

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  8. The source of energy for non-biological nitrogen fixation is

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  9. Vicia faba and pisum sativum are recommended for rotaion of crops beca...

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  10. Nitrogen fixing enzyme in root nodule is

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  11. Which of the following is an incorrect match ?

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  12. Which of the following can use elemental nitrogen as their nitrogen so...

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  13. Nitrogen fixation by organism requires conditions that are

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  14. Nodule formation is reduced in legume roots due to the deficiency of

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  15. On earth the largest reservoir of nitrogen is

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  16. Organisms that fix nitrogen in aquatic habitats are

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  17. In root nodules of leguminous plants, the pigment leghamoglobin that g...

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  18. Besides providing pink colour to the root nodules, leghaemoglobin perf...

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  19. Major nitrogen flxation is carried out by

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  20. Which one plays an important role in energy metabolism?

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