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Which of the following does not fix atmo...

Which of the following does not fix atmospheric nitrogen?

A

Nostoc

B

Anabaena

C

Spirogyra

D

Azotobacter

Text Solution

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The correct Answer is:
C
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ARIHANT NEET-MINERAL NUTRITION-Chapter Exercises (A) Taking it together (Assorted Questions of the chapter for Advanced level practise)
  1. Nitrite ions are reduced to ammonia by ferredoxin in

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  2. One of the following is a nitrogen-fixing enzyme

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  3. Which of the following does not fix atmospheric nitrogen?

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  4. A nitrogen-fixing cyanobacteria found in coralloid root of cyacas is

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  5. In plants, nitrate is reduced to ammonium state in two steps, in secon...

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  6. The concentration of a macroelement per gram of dry matter in plants i...

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  7. The major role of minor element inside living organisms is to act as:

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  8. "Dieback'' citrus and 'reclamation' of legumes and cereals is due to t...

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  9. The yellowing of leaves called chlorosis, is caused by insufficient

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  10. Which one of the following elements is absorbed by plants from soil di...

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  11. A trace element, also required for plant growth, and in the form of ra...

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  12. Deficiency symptoms of an element tend to appear first in young leaves...

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  13. Ca^(+2) is an essential element in plants. The major function it perfo...

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  14. Which one of the following elements is not required by plants for thei...

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  15. Foliar absorption of iron helps in rapid recovery from iron deficency....

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  16. Which ion is essential for maintaining the permeability of the cell me...

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  17. An element that plays important role in increasing hardness and heling...

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  18. Legume plants are important for atmosphere because thet

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  19. generally plant hat have symbiotic relations with N(2)-fixing bacteria...

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  20. Under anaerobic conditions, denitrifying bacteria such as Pseudomonas ...

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