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The common nitrogen-fixer in paddy field...

The common nitrogen-fixer in paddy fields is

A

Oscillatoria

B

Frankia

C

Rhizobium

D

Azospirillum

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The correct Answer is:
D
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CENGAGE BIOLOGY-MINERAL NUTRITION-ARCHIVES
  1. Which one of the following structures between two adjacent cells is an...

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  2. One of the free-living, anaerobic nitrogen-fixer is Or which of th...

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  3. The common nitrogen-fixer in paddy fields is

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  4. Nitrifying bacteria:-

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

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  6. A prokaryotic autotrophic nitrogen fixing symbiont is found in

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  7. Companion cells are closely accociated with Or Transport of food...

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  8. Study the cycle shown in Fig. 12.7 and select the option which gives c...

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

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

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  11. A nitrogen fixing microbe associated with the fern Azolla in rice fiel...

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  12. Best defined function of manganese in green plants is

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  13. Which one of the following is correctly matched?

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  14. Which one of the following is a wrong statement?

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  15. For its activity, carboxypeptidase requires

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  16. For its action, nitrogenase requires

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

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  18. Deficiency symptoms of nitrogen and potassium are visible first in

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  19. Which one gives the most valid and recent explanation for stomatal mov...

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  20. Minerals known to be required in large amounts for plant growth includ...

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