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In nitrification, ammonia is first oxidi...

In nitrification, ammonia is first oxidised to nitrite by

A

Nitrosomonas and Nitrococcus

B

Nitrosomonas and Nitrobactor

C

Pseudomonas and Nitrococcus

D

Pseudomonas and Thiobacillus

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TRUEMAN BIOLOGY-MINERAL NUTRITION-MULTIPLE CHOICE QUESTIONS
  1. Which of the following is a mobile mineral element in the plants?

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  2. Which of the following micronutrients is essential for activation of u...

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  3. In nitrification, ammonia is first oxidised to nitrite by

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  4. Leguminous plants are able to fix atmospheric nitrogen through the pro...

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  5. Which one of the following is not a micronutrient

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  6. An element playing important role in nitrogen fixation is

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  7. One of the free-living, anaerobic nitrogen fixer is

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  8. Which one of the following is not an essential mineral element for pla...

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  9. An organism used as a biofertilizer for raising soyabean crop is:-

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  10. Nitrifying bacteria:-

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  11. The function of leghaemoglobin in the root nodules of legumes is:-

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  12. Hydroponics is the method of

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  13. Which one of the following elements (miconutrients) in plants is not r...

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  14. Which one of the following is not an essential mineral element for pla...

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  15. Cuscuta is an example of

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  16. For its action, nitrogenase requires

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  17. Which one of the following is wrong statement ?

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  18. A nitrogen fixing microbe associated with Azolla in rice-fields is:-

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  19. Best defined function of manganese in green plants is

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  20. The first stable product of fixation of atmospheric nitrogen in legumi...

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