Question No:1

Which element play important role in opening and closing of stomata?

[A] P
[B] N
[C] K
[D] Ca



Question No:2

In how many broad categories can the essential elements be grouped on the basis of their diverse function?

[A] 1
[B] 2
[C] 3
[D] 4



Question No:3

Which essential nutrient in plant is required in greatest amount?

[A] N
[B] P
[C] K
[D] Ca



Question No:4

Nitrogen is one of the major constituents of

[A] protein
[B] nucleic acid
[C] vitamins and hormones
[D] all



Question No:5

Select the incorrect match:
Element Absorbable form

[A] Nitrogen – NO^–,NO^–NH⁺
[B] Sulphur – S^2-
[C] Iron – Fe3+
[D] Boron – BO33-, B4Of



Question No:6

Which is required for all phosphorylation reaction?

[A] N
[B] Ca
[C] P
[D] K



Question No:7

Which of the following is the function of potassium?
(1) Cation-anion balance in cell.
(2) Involved in protein synthesis.
(3) Activation of enzyme.
(4) Opening and closing of stomata.
(5) Maintenance of turgidity of cell.

[A] All except 1
[B] All except 1 and 2
[C] All except 3
[D] All



Question No:8

Which element is involved in the formation of mitotic spindle?

[A] N
[B] P
[C] Ca
[D] K



Question No:9

Following functions are related to which element mainly?
(1) Activate enzyme of photosynthesis and respiration.
(2) Involved in synthesis of DNA and RNA.
(3) Help to maintain structure of ribosome.

[A] Ca
[B] Mg
[C] S
[D] Fe



Question No:10

Which of the following group contains sulphur in all members?

[A] Thiamine, ferredoxin, aspartic acid
[B] Biotin, coenzyme A, methionine
[C] Methionine, proline, leucine
[D] DNA and RNA



Question No:11

Which of the following is true about iron?

[A] It is a constituent of ferredoxin and Cytochrome
[B] It activates catalase enzyme
[C] It is essential for formation of chlorophyll
[D] All



Question No:12

Which element is related to the splitting of water in light reaction of photosynthesis?

[A] Mn
[B] Mo
[C] Fe
[D] B



Question No:13

Match the column:
Column I— Column IIA. Zinc — 1) Needed for synthesis of Auxin
B. Copper – 2) Essential for water splitting reaction
C. Boron – 3)Pollen germination
D. Molybdenum — 4) Component of nitrate reductase
E. Chlorine – 5) Associated with enzyme involved in Redox reaction

[A] A-2,B-3,C-1,D-5,E-4
[B] A-1, B-2, C-3, D-4, E-5
[C] A-1,B-5,C-3,D-4,E-2
[D] A-5, B-4, C-3, D-2, E-1



Question No:14

Which element generally activates carboxylase enzyme?

[A] Mo
[B] Mn
[C] Mg
[D] Zn



Question No:15

Following functions are related to
(1) Uptake and utilization of calcium
(2) Carbohydrate translocation
(3) Cell elongation and maturation
(4) Membrane functioning

[A] Ca
[B] B
[C] Mo
[D] Zn

Related posts:

1. Mineral Nutrition Mock Exam-1
2. Biomolecules Mock Exam-2
3. Biomolecules Mock Exam-7
4. Biomolecules Mock Exam-5
5. Redox Reaction Mock Test-1

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