Biology

1. Minerals of soil are derived from

Subsoil

Clay

Rocks

Organisms

Question 1 of 20

2. Indian soil is mainly deficient of:

Sulphur

Magnesium

Zinc

Nitrogen

Question 2 of 20

3. Balancing elements are:

All above

Question 3 of 20

4. Which of the following elements from the storage elements?

Ca,B,N,O

C,N,S,P

Ca,C,N,K

N,P,K,B

Question 4 of 20

5. Absence of magnesium from plant tissues results in:

Hydrolysis

Necrosis

Chlorosis

Plasmolysis

Question 5 of 20

6. Critical elements are:

N,P,S

N,P,K

P,K,S

N,S,K

Question 6 of 20

7. Which of the following is required for synthesis of ascorbic acid oxidase?

Iron

Copper

Cadmium

Zinc

Question 7 of 20

8. Bacteria which changes protein to ammonia and termed as:

N₂ fixing bacteria

Denitrying bacteria

Decay or ammonifying bacteria

Nitrate bacteria

Question 8 of 20

9. Exanthema in citrus is caused due to efficiency of:

Question 9 of 20

10. Which element is essential for photolysis of water?

Sulphur

Calcium

Sodium

Chlorine

Question 10 of 20

11. In the case of diseased plants small spots or streaks of dead tissue appear. The phenomenon is called:

Chlorosis

Necrosis

Distortion

Mottling

Question 11 of 20

12. Deficiency of Iron first appears in:

Young leaves

Old leaves

Young fruits

General starvation

Question 12 of 20

13. The term ‘hydroponics’ was coined by:

Garrison

Sachs

Melcher

Gerick

Question 13 of 20

14. Nutrient which is essential for stomata’s opening is:

Nitrogen

Potassium

Iron

Copper

Question 14 of 20

15. Leaf tip bending may be caused due to efficiency of:

Calcium

Phosphorous

Sulphur

Nitrogen

Question 15 of 20

16. They are protoplasmic elements:

C,O,N,S

M,H,O

All of the above

O,N,P

Question 16 of 20

17. The last electron acceptor in ETS is made up of:

Question 17 of 20

18. Silica is abundantly found in:

Grasses

Grasses and diatoms

Diatoms

Horsetails

Question 18 of 20

19. Crop plants absorb carbon in form of:

CO₂ from the soil

Elemental carbon from the soil

Carbonates

CO₂ from the atmosphere

Question 19 of 20

20. Deficiency of potassium in plant causes:

Increased apical dominance

Increased secondary growth

Increased monopodial growth

Decreased apical dominance

Question 20 of 20

Test Name	Plant Nutrition Practice Test
Subject	Biology
Test Type	Mcqs
Total Question	20
Total Marks	40
Total Time	20
Test Help For	Biology For All Grades General Knowledge Everyday Science CBSE Exam Medical Admission Entrance Test

Test By Subject	Science
Test By Topics	Plant Nutrition

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Plant Nutrition Practice Test Online Question Answer

Plant Nutrition Practice Test Online Question Answer

Biology