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Class 11 Biology Chapter 12 Mineral Nutrition Quiz 4 (25 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. What is the consequence of a deficiency in Manganese?

Correct Answer: D) Interveinal chlorosis.

2. Which mineral is required in larger amount in comparison to other micronutrients

Correct Answer: C) Fe.

3. The main component of phloem sap is

Correct Answer: A) Organic substances synthesized in the leaves.

4. Plants response to light .....

Correct Answer: D) Phototropism.

5. What is the process called when plants absorb mineral ions against their concentration gradient?

Correct Answer: C) Active absorption.

6. Plants response to touch is called?

Correct Answer: C) Thigmotropism.

7. What is the effect of lack of chlorophyll on photosynthesis?

Correct Answer: B) Results in chlorosis or yellowing of leaves.

8. Hydrophonics is a system of growing plants in-

Correct Answer: A) Soilless culture or solution cultures.

9. Manganese is required in

Correct Answer: C) Photolysis of water during photosynthesis.

10. Which of the following elements are required for chlorophyll synthesis-

Correct Answer: A) Fe and Mg.

11. Which one of the following elements in plants is not remobilized?

Correct Answer: A) Calcium.

12. Which adaptation of the leaf allows carbon dioxide to enter into the leaf?

Correct Answer: C) Presence of stomata.

13. ..... is an important secondary nutrient.

Correct Answer: D) Magnesium.

14. What is the overall chemical reaction of photosynthesis?

Correct Answer: A) 6CO2 + 6H2O $\rightarrow$ C6H12O6 + 6O2.

15. The free-living, anaerobic nitrogen-fixer is

Correct Answer: B) Rhodospirillum.

16. Water can get to the xylem through the ..... pathway, which is considered active absorption. Water passes through one cell to the next through plasmodesmata.

Correct Answer: B) Symplast.

17. What is the conclusion of Experiment II:Showing that Carbon Dioxide is Necessary for Photosynthesis?

Correct Answer: B) Carbon dioxide is necessary for photosynthesis.

18. What are hyperaccumulators?

Correct Answer: B) Plants that accumulate heavy metals.

19. The element is said to be ..... when present below the critical concentration.

Correct Answer: A) Deficient.

20. What is the effect of Potassium deficiency on leaves?

Correct Answer: A) Mottled chlorosis.

21. An immobile element in plants is

Correct Answer: A) Calcium.

22. Loss of chlorophyll leading to yellowing of leaves is known as

Correct Answer: B) Chlorosis.

23. Dried blood and fish meal are inorganic nitrogen fertilizers.

Correct Answer: B) False.

24. Low level of ..... causes an inhibition of cell division.

Correct Answer: D) All the above.

25. What is the role of the stomata in photosynthesis?

Correct Answer: B) Allows carbon dioxide to enter into the leaf.

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