Mineral Nutrition Test

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Mineral Nutrition Test - 5

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following elements is present in abundance in the air as a non-mineral element but plants usually obtain it from soil as nitrate or ammonium ion?

A
Nitrogen

B
Chlorine

C
Oxygen

D
Sulphur

Solution

This is the correct option. Nitrogen is present in abundance in the air as a non-mineral element but plants usually obtain it from soil as nitrate or ammonium ion.
Question 2
1 / -0

Which of the following elements is required in meristematic and differentiating tissues and is in excess in older leaves?

A
Nitrogen

B
Potassium

C
Calcium

D
Phosphorus

Solution

Calcium is required in meristematic and differentiating tissues and is in excess in older leaves.
Question 3
1 / -0

Chlorophyll formation, growth metabolism and nodule formation in legumes are the functions of

A
sulphur

B
copper

C
Chlorine

D
Magnesium

Solution

Chlorophyll formation, growth metabolism and nodule formation in legumes are the functions of sulphur.
Question 4
1 / -0

Intervenial chlorosis appearing first in young leaves, veins initially green, necrosis later on and reduced growth are the deficiency symptoms of

A
boron

B
zinc

C
manganese

D
iron

Solution

Intervenial chlorosis appearing first in young leaves, veins initially green, necrosis later on and reduced growth are the deficiency symptoms of iron.
Question 5
1 / -0

Which of the following are involved in the translocation of organic substances in the phloem?

a. Boron
b. Magnesium
c. Potassium
d. Phosphorus

A
Only a and b

B
Only b and c

C
Only a and c

D
Only c and d

Solution

Boron and potassium are involved in the translocation of organic substances in the phloem.
Question 6
1 / -0

Consider the following statements and mark your answer accordingly:

a. Magnesium is a component of chlorophyll that takes part in the conversion of light energy into chemical energy.
b. Salt uptake increases with the increase in the rate of transpiration and transport of water.

A
Both the statements are true.

B
Both the statements are false.

C
Statement 'a' is true and 'b' is false.

D
Statement 'b' is true and 'a' is false.

Solution

Both the statements are true. Magnesium is a component of chlorophyll that takes part in the conversion of light energy into chemical energy. Salt uptake increases with the increase in the rate of transpiration and transport of water.
Question 7
1 / -0

Consider the following statements and mark your answer accordingly:

a. After absorption from the soil by epiblema cells, the mineral salts pass radially inwards into the lenticels.
b. Nitrogen cycle is regular circulation of nitrogen among living organisms, reservoir pool in the atmosphere and cycling pool in the lithosphere.

A
Both the statements are true.

B
Both the statements are false.

C
Statement 'b' is true and 'a' is false.

D
Statement 'a' is true and 'b' is false.

Solution

This is the correct option as statement 'a' is false. After absorption from the soil by epiblema cells, the mineral salts pass radially inwards into the tracheary elements.
Question 8
1 / -0

Biological nitrogen fixation is the second most important natural process performed by prokaryotes. Which of the following prokaryotes are saprotrophic free living nitrogen fixing bacteria?

A
Anabaena and Nostoc

B
Aulosira fertilissima and Cylindrospermum

C
Azotobacter and Bacillus

D
Rhizobium and Frankia

Solution

Azotobacter and Bacillus prokaryotes are saprotrophic free living nitrogen fixing bacteria. They add 10-25 kg of nitrogen/ha/annum.
Question 9
1 / -0

Which of the following phenomena is the conversion of ammonium nitrogen to nitrate nitrogen and can be carried out by Aspergillus flavus?

A
Ammonification

B
Denitrification

C
Nitrification

D
None of these

Solution

This is the correct option. Nitrification is the phenomenon of conversion of ammonium nitrogen to nitrate nitrogen. It is performed in two steps - nitrite formation and nitrate formation. Both these steps can be carried out by Aspergillus flavus.

2NH₃ + 3O₂ → 2NO^-₂ + 2H⁺ + 2H₂O + energy

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Re-Attempt Weekly Quiz Competition

Mineral Nutrition Test - 5

Result

Mineral Nutrition Test - 5

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SHARING IS CARING

Question 1

Nitrogen

Chlorine

Oxygen

Sulphur

Solution

Question 2

Nitrogen

Potassium

Calcium

Phosphorus

Solution

Question 3

sulphur

copper

Chlorine

Magnesium

Solution

Question 4

boron

zinc

manganese

iron

Solution

Question 5

Only a and b

Only b and c

Only a and c

Only c and d

Solution

Question 6

Both the statements are true.

Both the statements are false.

Statement 'a' is true and 'b' is false.

Statement 'b' is true and 'a' is false.

Solution

Question 7

Both the statements are true.

Both the statements are false.

Statement 'b' is true and 'a' is false.

Statement 'a' is true and 'b' is false.

Solution

Question 8

Anabaena and Nostoc

Aulosira fertilissima and Cylindrospermum

Azotobacter and Bacillus

Rhizobium and Frankia

Solution

Question 9

Ammonification

Denitrification

Nitrification

None of these

Solution

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