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Question 1 of 15
1. Question
Which of the group of elements is not essential for a normal plant ?
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Question 2 of 15
2. Question
The group of mineral nutrients known as framework elements are
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Question 3 of 15
3. Question
Which one is an essential mineral, not constituent of any enzyme but stimulates the activity of many enzymes?
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Question 4 of 15
4. Question
N2 + 8e– + 8H+ + 16 ATP -> 2NH4 + H2 + 16ADP + 16Pi
The above equation belongs to
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Question 5 of 15
5. Question
Which are not correct?
A.Chlorosis is the loss of chlorophyll leading to yellowing in leaves seen in deficiency of Cu and Mg
B.death of tissue, particularly leaf tissue seen in deficiency of K, Mg,Mn
C.inhibition of cell division seen in deficiency of N,K,Mg
D.delay flowering is one of the cause of low level of N,S,Mo
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Question 6 of 15
6. Question
Leghaemoglobin helps in
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Question 7 of 15
7. Question
Study the cycle shown below and select the option which gives correct words for all the four blanks A, B, C and D.
A B C D 1 Nitrification Ammonification Animals Plants 2 Denitrification Ammonification Plants Animals 3 Nitrification Denitrification Animals Plants 4 Denitrification Nitrification Plants Animals CorrectIncorrect -
Question 8 of 15
8. Question
Match column-I and Column-II and choose the correct option given below the columns.
(Element) (Function)
A.Calcium 1.Required for ionic- balance.
B.Boron 2.Essential for constitution of nucleic acid
C.Phosphorus 3.Required for absorption of calcium.
D.Chlorine 4.Required to activate respiratory enzyme.
E.Manganese 5.Required for synthesis of mitotic spindle.
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Question 9 of 15
9. Question
Which of the following is the mismatched pair?
Mineral elements and Form that is absorbed by plant
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Question 10 of 15
10. Question
Which one of the following is correctly matched?
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Question 11 of 15
11. Question
A B C D 1 Funnel for adding water + nutrients Aerating tube Nutrient solution Hydroponics 2 Funnel for adding only nutrients Aerating tube Water Aeroponics 3 Funnel for adding only water Aerating tube Nutrients Aeroponics 4 Funnel for adding water + nutrients Aerating tube Water Hydroponics CorrectIncorrect -
Question 12 of 15
12. Question
The following percentage of water absorbed by herbaceous plants is lost in transpiration
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Question 13 of 15
13. Question
Select the correct match.
A.Nitrosomonas – ammonia to nitrogen
B.Thiobacillus – Nitrite to NO
C.Nostoc – Anaerobic nitrogen-fixer
D.Azotobacter – aerobic freeliving nitrogen fixing bacteria
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Question 14 of 15
14. Question
A free-living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is
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Question 15 of 15
15. Question
Mycorrhiza is a symbiotic relationship between roots of higher plants and
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