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Choose the correct statement....

Choose the correct statement.

A

Solution culture (hydroponics ) contains all essential elements except one, the usefulness of which is to be determined

B

In Aeroponics roots are dipped in solution culture rich in air

C

Potometer is used to measure degree of opening of stomata

D

All of the above

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TRUEMAN BIOLOGY-MINERAL NUTRITION-MULTIPLE CHOICE QUESTIONS
  1. Which one is an essential mineral, not constituent of any enzyme but s...

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  2. A trace element essential for plant growth and radioactive isotope whi...

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  3. Choose the correct statement.

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  4. The agent that keeps metals in the soluble state is called

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  5. The most crucial event in nature governing nutrient balance is

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  6. Which has both Fe and Cu as prosthetic group?

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  7. Which of the following is a component of coenzyme A, vitamin biotin, ...

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  8. The deficiency of boron results in all except

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  9. Boron in green plants assists in

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  10. Match the correct deficiency symptoms.

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  11. Which of the following is non-symbiotic biofertilizer

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  12. The most important function of Rhizobium is

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  13. Which gene cluster is responsible for nitrogen fixation in bacteria?

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  14. N(2) fixation is

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  15. The process of N(2) fixation in root nodules is controlled by

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  16. Enzyme involved in nitrogen assimilation

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  17. Nitrate reductase forms 1. N(2) 2. NH(3) 3. NO(2) 4. NO(3)

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  18. If by radiation all nitrogenase enzyme are inactivated, then there wil...

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  19. Plants that have mutualistic relations with nitrogen-fixing bacteria ...

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  20. Plants that have mutualistic relations with nitrogen-fixing bacteria ...

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