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Class 11 Biology Chapter 12 Mineral Nutrition Quiz 8 (25 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Water potential is a measure of how freely water molecules can move.

Correct Answer: A) True.

2. Which of the following is a factor affecting mineral uptake?

Correct Answer: D) Soil temperature.

3. Conversion of nitrate to ammonia is a/an:

Correct Answer: D) Reductive process.

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

Correct Answer: B) Ca.

5. What is hydroponics?

Correct Answer: A) Water-based, soilless growing method.

6. Which of the following is not a criterion for an essential nutrient?

Correct Answer: B) Form large molecules in plants.

7. Which one of the following helps in absorption of phosphorous from soil by plants?

Correct Answer: D) Glomus.

8. Which elements do plants need for completion of their life cycle?

Correct Answer: C) Essential Elements.

9. Transpiration mainly occurs through stomata because

Correct Answer: B) It has a high rate and is regulated by stomatal opening and closing.

10. What is the primary function of Calcium in plants?

Correct Answer: D) Cell wall synthesis.

11. What is the aim of Experiment III:Showing that Oxygen is given off during Photosynthesis?

Correct Answer: A) To show that oxygen is given off during photosynthesis.

12. Roots absorb water most effectively when

Correct Answer: B) Soil is moderately moist and aerated.

13. Which color of light is most rapid in photosynthesis?

Correct Answer: B) Red.

14. Which nutrient is essential for the activation of enzymes in respiration?

Correct Answer: A) Potassium.

15. How does water find it's way through the soil to the roots

Correct Answer: B) Pore Spaces.

16. Which nutrient is involved in the synthesis of DNA and RNA?

Correct Answer: B) Magnesium.

17. Which of the following is a component of vitamin (thiamine, biotin), Acetyl CoA, cysteine, methionine and ferrerdoxin?

Correct Answer: B) S.

18. Which factor affects the rate of reaction in photosynthesis by absorbing light energy?

Correct Answer: C) Chlorophyll.

19. What is the primary role of Boron in plants?

Correct Answer: C) Cell elongation.

20. Mineral known to be required in large amounts for plant growth include:

Correct Answer: A) Phosphorus, potassium, sulphur, calcium.

21. What is the process called when plants absorb minerals through their leaves?

Correct Answer: D) Foliar application.

22. Leguminous plants are able to fix atmospheric nitrogen through the process of symbiotic nitrogen fixation. Which one of the following statements is not correct during this process of nitrogen fixation?

Correct Answer: D) Nitrogenase is insensitive to oxygen.

23. Glycolysis does not require oxygen.

Correct Answer: A) True.

24. Which element is very essential for uptake and utilization of Ca+2, membrane function, pollen germination and carbohydrate translocation via phloem-

Correct Answer: D) B.

25. What is the conclusion of Experiment IV:Showing that Chlorophyll is Necessary for Photosynthesis?

Correct Answer: C) Starch is made only in areas of the leaf with chlorophyll.

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