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Nitrogen-fixation refers to...

Nitrogen-fixation refers to

A

conversion of soil nitrogen into atmospheric nitrogn `(N_(2))`

B

converseion of atmospheric molcular nitrogen `(N_(2))` into easily absorbable forms

C

utilisation of nitrogen compounds in the soil by the plants

D

none of the above

Text Solution

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The correct Answer is:
B
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ARIHANT NEET-MINERAL NUTRITION-Check Point 19.2
  1. Nitrogen-fixation refers to

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  2. Abiological nitrogen fixation in industries occurs at

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  3. During natural abiological nitrogen fixation, the end product is

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  4. Nitrogen-fixation in the environment is done

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  5. An aerobic saprotrophic nitrogen-fixing free-living bacteria is

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  6. A nitrogen-fixing bacteria living in leaves of Rubiaceae and Mysinacea...

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  7. Most active free-living cyanobacteria in rice field for nitrogen-fixat...

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  8. Nostoc develops symbiotic relationship with

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  9. Which one does not fix nitrogen?

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  10. Nitrogenase enzyme is

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  11. Activity of nitrogenase enzyme depends on

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  12. N(2)+8e^(-)+8H^(+)+16ATP to 2NH(3)+H(2)+16ADP+16"Pi" The above equa...

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  13. During ammonification,the gaseous NH(3) changes to its ionic form in t...

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  14. Some plants can store ammonium ions, even though they are highly toxic...

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  15. Which of the following is a characteristic feature of nitrifying bacte...

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  16. 2NH(3)+3O(2) overset(X)to 2NO(2)^(-)+2H^(+)+2H(2)O In the given equa...

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  17. The reduction of nitrite to ammonia during nitrate assimilation is car...

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  18. Reaction of a-ketoglutaric acid with ammonia to form glutamic acid is

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  19. Glutamine react with . . . . In the presence of glutamate synthetase ...

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  20. Denitrification process deplete important nutrients from the soil it a...

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