Mineral Nutrition Test

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Mineral Nutrition Test - 12

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Weekly Quiz Competition

Question 1
1 / -0

Inorganic nutrients are present in the soil in the form of

A
Molecules

B
Atoms

C
Electrically charged ions

D
None of the above

Solution

Water and minerals ions are inorganic material present in the soil. The minerals exist as electrically charged ion because the root hair absorbs the mineral by passive absorption to outer space like intercellular space and cell wall but for absorption into the inner space like cytoplasm and the vacuoles, it needs active transport which requires ions to create a concentration gradient. The electrically charged mineral ions help to maintain the concentration gradient and allows easy absorption through active transport.
So, the correct answer is option C.
Question 2
1 / -0

Which one of the following is not a micro or trace element?

A
Boron

B
Molybdenum

C
Manganese

D
Calcium

Solution

Both calcium and magnesium are classified as macronutrients, because they are required in large quantities.
Question 3
1 / -0

Which one of the following is not a micronutrient?

A
Boron

B
Molybdenum

C
Magnesium

D
Zinc

Solution

Magnesium is a macronutrient. Boron, molybdenum and zinc are important micronutrients.
So, the correct answer 'Magnesium'
Question 4
1 / -0

Phosphorus is a structural element in

A
Fat

B
Starch

C
Nucleotide

D
Carbohydrate

Solution

Phosphorus is an important constituent of nucleotides. In fact, by definition the nucleotides are phosphoric acid esters of nucleosides. So, nucleotides are basically nucleosides to which a phosphate moiety has been attached via an ester bond.
Thus, the correct answer is option C.
Question 5
1 / -0

Nodules with nitrogen fixing bacteria are present in

A
Cotton

B
Gram

C
Wheat

D
Mustard

Solution

Root nodules are present in roots of leguminous plants. Leguminous plants belong to family Leguminosae i.e., common pulses. Of the given options only gram is a leguminous crop. Hence, only 'Gram' is expected to show root nodules.
Question 6
1 / -0

Which of the following is/are macro-nutrient ?

A
Ca and Mg

B
Mo

C
Mn

D
Zn

Solution

Zinc, molybdenum and manganese are essential micro nutrients required in small quantity, calcium and magnesium are both essential macro nutrients required in large amounts. Calcium is important constituent of plant cell wall while magnesium is important constituent of chlorophyll, structural integrity of ribosomes and plays an important role in cellular metabolic reactions.
Question 7
1 / -0

Which of the following is not a macro-nutrient?

A
C

B
P

C
N

D
Zn

Solution

Carbon, phosphorous and nitrogen are macronutrients, while zinc is an essential micronutrient. Zinc is required as an essential element for activity of a number of enzymes like alcohol dehydrogenase, carbonic anhydrase etc.
Question 8
1 / -0

Zn, Mo, Fe, Cu are

A
Trace element

B
Non essential elements

C
Macro-nutrients

D
None of the above

Solution

There are about 17 elements which are essential for the functioning of plants.
Major nutrients: Nitrogen (N), Phosphorus (P) and Potassium (K).
Secondary nutrients : Calcium (Ca), Magnesium (Mg) and Sulphur (S).
Micronutrients or trace elements: Boron (B), Chlorine (Cl), Copper (Cu), Iron (Fe), Manganese (Mn), Molybdenum (Mo) and Zinc (Zn).
Macronutrients are required in large amounts by plants while micronutrients are required in small amounts in plants.
Thus, the correct answer is option A.
Question 9
1 / -0

The major role of phosphorus in the plant metabolism is

A
To generate metabolic energy

B
To evolve oxygen during photosynthesis

C
To evolve carbon dioxide during respiration

D
To create anaerobic conditions

Solution

Phosphorus is an important constituent of energy rich nucleotides like Adenosine mono-, di- and triphosphates (AMP, ADP, ATP) etc. Thus phosphorous is indispensable for reactions involving energy transfer in living systems.
Question 10
1 / -0

Which of the following is a micro-nutrient or trace element?

A
Mg

B
Zn

C
Ca

D
P

Solution

Zinc is an essential micronutrient for plants. Zinc is required for activity of enzymes like alcohol dehydrogenase and auxin biosynthesis. Calcium, phosphorous and magnesium are required in larger quantity and they are macronutrients.

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Mineral Nutrition Test - 12

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Mineral Nutrition Test - 12

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Question 1

Molecules

Atoms

Electrically charged ions

None of the above

Solution

Question 2

Boron

Molybdenum

Manganese

Calcium

Solution

Question 3

Boron

Molybdenum

Magnesium

Zinc

Solution

Question 4

Fat

Starch

Nucleotide

Carbohydrate

Solution

Question 5

Cotton

Gram

Wheat

Mustard

Solution

Question 6

Ca and Mg

Mo

Mn

Zn

Solution

Question 7

C

P

N

Zn

Solution

Question 8

Trace element

Non essential elements

Macro-nutrients

None of the above

Solution

Question 9

To generate metabolic energy

To evolve oxygen during photosynthesis

To evolve carbon dioxide during respiration

To create anaerobic conditions

Solution

Question 10

Mg

Zn

Ca

P

Solution

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