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A nitrogen fixing microbe associated wit...

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

A

Anabaena

B

Frankia

C

Tolypothrix

D

Spirulina

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TRUEMEN BIOLOGY ENGLISH-MINERAL NUTRITION-MULTIPLE CHOICE QUESTIONS
  1. For its action, nitrogenase requires

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  2. Which one of the following is wrong statement ?

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

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  4. Best defined function of manganese in green plants is

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

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

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

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  8. During biological nitrogen fixation, inactivation of nitrogenase by ox...

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  9. In which of the following, all the three are macronutrients

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  10. Which is essential for the growth of root tip ?

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  11. Select the mismatch

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  12. In which of the following forms is iron absorbed by plants

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  13. Which of the following elements is responible for maintaining turgor i...

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  14. Photosynthetic nutrition in plants is also known as

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  15. An essential element is that which

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  16. Plants require minor elements in small quantities, their major role is...

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  17. Micronutrients are

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  18. Importance of microelements was recognised late due to

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  19. An essential element derived fromo soil only is called

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  20. The criteria for the essentiality of a mineral element were given by

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