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(The Gist of Science Reporter) MCQs on MINERAL NUTRITION IN PLANTS
[November-2019]

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MCQs on MINERAL NUTRITION IN PLANTS

1. Which one of the following is a macronutrient?

Potassium         
Nitrogen        
Calcium         
Boron

Answer: A

2. The mineral constituent of cell wall is

Iron     
Zinc        
Calcium     
Potassium

Answer: C

3. Which one is required for nitrogen fixation?

Mo      
Zn         
Mn         
Mg

Answer: A

4. Roots can absorb minerals for the soil in

Solid state         
Liquid state         
Ionic state         
Gaseous state

Answer: C

5. Premature leaf fall is due to the deficiency of

Phosphorous         
Nitrogen         
Calcium         
Potassium

Answer: A

6. Phosphorous is a structural element in

Fat     
Starch         
Nucleotide         
Carbohydrate

Answer: C

7. The leaves become yellow due to the deficiency of

Zinc & Boron     
Potassium & calcium 
Iron & Magnesium d
None of the above

Answer: C

8. The core element of chlorophyll is

Mn         
Mg         
Zn         
Fe

Answer: B

9. One of the following elements is not of much importance to plants

Calcium     
Zinc         
Copper         
Sodium

Answer: D

10. Which of the following is a trace element?

Zn         
Ca        
P         
Mg

Answer: A

11. Essential element for photolysis of water

Nitrogen     
Oxygen    
Chlorine     
Carbon

Answer: C

12. Zinc is essential for

Stomatal closing     
Stomatal opening    
Biosynthesis of IAA 
Oxidation of carbohydrate

Answer: C

13. Both Nitrogen and Sulphur are required by plants for

Chlorophyll synthesis         
Enzymes        
Cell wall         
Stomatal movement

Answer: B

14. Brown heart disease is due to deficiency of

Iron         
Boron        
Potassium         
Molybdenum

Answer: B

15. Bidirectional translocation of minerals takes place through

Xylem         
Phloem        
Parenchyma         
Cambium

Answer: B

16. An essential element

Occurs in plant ash 
Is absorbed by root 
Is irreplaceable and indispensable for plant growth 
All the above

Answer: C

17. The brown colour of leaves of cabbage is due to the deficiency of

Boron         
Nitrogen        
Sulphur         
Calcium

Answer: A

18. Plants require one of the following for formation of ATP

N & Ca     
N & P        
N & Cu         
K & Cu

Answer: B

19. Cyanobacteria help farmers by

Reducing the alkalinity of the soil
Increasing soil fertility of the soil
Neutralizing alkalinity of the soil
Water Waterlogging

Answer: B

20. Ion uptake is called active because

Ions are active 
Ions move freely
Energy is expended 
Ions move positively

Answer: C

21. The movement of mineral ions into plant root cells as a result of diffusion is called

Endocytosis
Osmosis    
Passive absorption 
Active absorption

Answer: C

22. Metal present in Plastocyanin is

Cu     
Fe        
Zn     
Mo

Answer: A

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Courtesy: Science Reporter