Mineral Nutrition Questions

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Mineral Nutrition Questions

List of mineral nutrition Questions

Question NoQuestionsClass
1Cultivation of plants by placing the roots in the nutrient solution is called
A. Geoponics
B. Hydroponics
c. Aeroponics
D. None of the above
2The term hydroponic was coined by
A. Sachs
B. Gericke
c. Pristely
D. None of the above
3Critical elements are
A. Na, K and ca
B. N, P and Mg
c. ( N, ) P and ( kappa )
D. Mn, B and Mo
4Explain with examples:
macronutrients, micronutrients,
beneficial nutrients, toxic elements and essential elements.
5Hydroponics is
A. Nutrient less culture
B. Water less culture
C. Soilless culture
D. None of the above
6Hydroponics is growing of plants
A. Without soil.
B. Without organic matter.
C. In water.
D. All of the above.
7Which one of the following is not an essential micronutrient for plants?
A. Sodium
B. zinç
c. Boron
D. copper
8A microelement is the one which is
A. more important than the macroelement
B. less important than the macroelement
C. present in very small quantities in the soil
D. needed in very small amounts but is as important as a macroelement
9Why are the leaves attacked by aphids often feel sticky?11
10Hydroponics is growing plants
A. Without soil
B. Without organic matter
C. In water
D. All the above
11Choose the correct answer from the
alternatives given Hydroponics is a technique of growing:
A. submerged Plants
B. free-floating aquatic plants
c. terrestrial plants in sand
D. plants in aqueous balanced nutrient medium
12Why is that in certain plants deficiency
symptoms appear first in younger parts
of the plants while in others they do so in mature organ?
13What are micronutrients? Write two
examples of it?
14Knot like bodies known as ‘nodules’
found in the root of groundnut plant are produced by
A. Azospirillum
B. Azotobacter
c. Pseudomonas
D. Rhizobium
15Hydroponic is a subset of what type of culture?
A. Hydroculture
B. Solid medium culture
c. xeroculture
D. Tissue culture
16‘Mycorrhizae’ are useful for the plants
mainly due to
A. Fixing atmospheric nitrogen
B. Enhanced absorption of nutrients from soil
c. killing insects and pathogens
D. Providing resistance against abiotic stresses
17Choose the correct answer from the
alternatives given. In plants a common symptom caused by deficiencies of ( mathrm{Ca}, mathrm{K}, mathrm{Mg} ) and ( P ) is the:
A. appearance of a dead necrotic area
B. poor development of vasculature
c. bending of the leaf tip
D. formation of carotenes in plenty
18Which is wrongly matched?
A. Rhizobium – Free living nitrogen fixer
B. Humus – Abiotic component
C. Phosphorous cycle – Sedimentary
D. Cedrus deodara – Coniferous forest
E. Shorea robusta – Tropical deciduous forest
19Hydroponics is the
A. Growing of aquatic plants.
B. Growing of floating aquatic plants.
C. Growing of plants in sand.
D. Growing of plants in nutrient balanced aqueous medium.
20What is the key principle of the EBB and flow system in hydroponics?
A. It floods and drains periodically
B. It makes a tide flowing over the roots
C. It sprays a mist of nutrients on the roots
D. None of the above
Nitrogen-fixing enzyme in legume root nodules function at low oxygen
Low oxygen concentration is provided by leghaemoglobin.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
22Which of the following is a free living nitrogen fixing bacteria?
A. Pseudomonas putida
B. Bacillus polymyxa
c. Rhizobium
D. xanthomonas
23Root nodules are found in
A. Some leguminous plants only
B. In all plants
C. Some leguminous plants and some other plants also
D. All leguminous plants but never in other plants
24The first stable product of fixation of atmospheric nitrogen in leguminous
plants is
( mathbf{A} cdot N O_{2}^{-} )
B. Ammonia
( mathbf{c} cdot N O_{3}^{-} )
D. Glutamate
25Which of the following contains macronutrients only?
A. Calcium, sulphur and zinc
B. Nitrogen, potassium and phosphorus
c. Calcium, magnesium and copper
D. Nitrogen, Iron and chlorine
26Micronutrients are needed in amounts
equivalent to
A. ( 8 mathrm{m} ) mole/kg of dry matter
B. 18m mole/kg of dry matter
c. 25m mole/kg of dry matter
D. 30m mole/kg of dry matter
27What is labelled as A and what is the pH
of media A?
A . Nutrient solutions with essential minerals with pH
B. Nutrient solutions with essential minerals with pH
c. Water with essential minerals with ( mathrm{pH} ) 7
D. water with pH7
28Which one of the following can utilize
molecular nitrogen ( left(N_{2}right) ) as nutrient for
A. Rhizobium
B. Spirogyra
c. Mucor
D. Methancoccus
29Short / Long answer type questions. Why is osmotic potential given a negative sign?11
30Very short answer type.
How does the segmentation of an annelid worm differ from the repeating units of the body of a tapeworm?
31Match the columns
( begin{array}{llll} & text { । } & text { I } & \ text { a } & text { Aerobic } & text { I } & text { Frankia } \ text { b } & text { Cyanobacteria } & 2 . & text { Azospirilum } \ text { c. } & text { Casuarina } & 3 . & text { Clostridum } \ text { d. } & text { Tropical grasses } & 4 . & text { Aulosira } \ & & 5 . & text { Azotobacter }end{array} )
( mathbf{A} )
( a-4, b-3, c-2, d-1 )
B. ( a-5, b-3, c-4, d-1 )
c. ( a-5, b-4, c-1, d-2 )
D. ( a-3, b-5, c-4, d-2 )
E ( . a-2, b-1, c-3, d-5 )
32Which of the following microbes produces nitrogen fixing nodules in non leguminous plants?
A. Rhizobium
B. Frankia
c. Azotobacter
D. Pseudomonas
33Which group represent micronutrients?
A. Mn, Zn, Fe, B, CI, Ni
B. ( c, mathrm{S}, mathrm{O}, mathrm{N}, mathrm{K}, mathrm{Ca} )
( c cdot ) са, Мg, к, ऽ,
D. C, H, Fe, Mn, Си, Мо
34Azotobacter and Bacillus polymyxa are
A. Decomposers
B. Non-symbiotic nitrogen fixers
C. Symbiotic nitrogen fixers
D. Pathogenic bacteria
35Brown heart disease is due to the
deficiency of
A. Boron.
B. Iron
c. Molybdenum.
D. Phosphorus
36The role of individual mineral element
in plant body has been determined by growing plants with their roots immersed in nutrient solution without
soil. This technique is called as
A. Hydroponics
B. Photolysis
c. Bulk method
D. Bagging
E. Hypostatic
37Explain the formation of root nodules in legumes.11
38Technique of growing plants without soil in nutrient solution is called
A. Parthenogenesis
B. Hydroponics
c. Aquaculture
D. Tissue culture
39In plant nutrition elements are classified as major or minor depending
A. Their availability in the soil.
B. Their relative production in the ash obtained after burning the plants.
c. Their relative amounts required by the plants.
D. Their relative importance in plant growth
40Why is the purification of water and
nutrient salts so important in studies involving mineral nutrition using hydroponics?
41Who recorded first mineral elements in
plant cell?
A. Liebig
B. Woodward
c. van Helmont
D. None of the above
42Short / Long Answer Type Questions:
What are biofertilizers? What are their
main sources? What is biological nitrogen fixation? Name two organisms each which fix nitrogen asymbiotically and symbiotically.
4332. Interferons are synthesized in
response to
(1) Bacteria (2) Fungi
(3) Mycoplasma (4) Virus
44Which of the following is correct?
A. Legumes fix nitrogen through bacteria in their leaves.
B. Legumes fix nitrogen through bacteria in their roots.
C. Legumes fix nitrogen independent of bacteria.
D. Legumes do not fix nitrogen.
45Select the incorrect statement.
A. Microelements involve ( mathrm{N}, mathrm{P}, mathrm{Mn}, mathrm{Cu}, mathrm{Mo} )
B. The concentration of microelements is ( 10 mathrm{m} ) mole/kg
C. If the concentration is more than ( 10 mathrm{m} ) mole/kg, they become toxic
D. The deficiency of microelements causes symptoms of disease
46Which of these plants contains nitrogen-fixing bacteria?
( A cdot ) Gram
B. Wheat
c. Mustard
D. cotton
47Which phenomenon is exhibited by the
figure above?
A. A- Hydroponic
B. A- Hydrostatic
c. A- Just a plant in a tub
D. A- None of the above
48An anaerobic bacterium capable of nitrogen fixation is
A. Chlorobium
B. Rhodospirillum
c. clostridium
D. All of the above
49Tracer elements are
A. Micro elements
B. Macro-elements
C . Radio isotopes
D. Vitamins
50Vein loading of sucrose into companion
cell is
A. Diffusion
B. Active process
c. Passive transport
D. Turgor
51What will happen, if Rhizobium is
inoculated in wheat field?
A. No increase in production (nitrogen content of soil remains same
B. A lot of increase in production (nitrogen content of soil increase)
c. Fertility of soil decreases
D. Fertility of soil increases
52Doctors recommend sunflower oil as it
A. Rich source of vitamins
B. Rich in energy and reduces weight
c. Rich in saturated fatty acids
D. Rich in unsaturated fatty acids
53The haemoglobin like pigment is found
A. Seeds of legumes
B. Clostridium
c. Rhizobium
D. Leguminous root nodules
5423. Select the principal nutrient(s) out of the following
(a) Hydrogen (b) Copper
(c) Nitrogen
(d) None of these
55Premature leaf fall is caused due to the
deficiency of
56Find the odd one out:
A. Nitrogen
B. Potassium
( c . ) zinc
D. Phosphorus
57Nitrogenase enzyme is present in?
A. Prokaryotes
B. Eukaryotes
( c . ) Both
D. None
58Name atleast five different deficiency symptoms in plants. Describe them and
correlate them with the concerned
mineral deficiency.
59If by radiation all nitrogenase enzyme are inactivated, then there will be no
A. Conversion from ammonium to nitrate in soil
B. Fixation of nitrogen by legumes
c. conversion from nitrate to nitrite in legumes.
D. None of the above
60Hydroponics is a technique in which plants are grown in
A. Green house
B. Water saturated sand
c. Balanced nutrient solution
D. Purified distilled water
61Name a chelate. Why is iron added in
hydroponics along with chelating agent
( ? )
62The ability of coralloid roots to fix atmospheric nitrogen is due to the
presence of
A. Blue-green algae
B. Mycorrhiza
c. Rhizobium
D. None of these
63The plant ash is an indication of
A. organic matter of plant
B. Waste product
C. Mineral salts absorbed by plants
D. None of the above
64Long answer type questions. Why were micronutrients discovered
later than macronutrients? With one
example each, mention the physiological role and deficiency disease caused by
(i) nitrogen, (ii)
phosphorus, (iii) copper, and (iv) iron.
65Which one of the following is a free living nitrogen-fixing bacterium?
A. Rhizobium
B. Azotobacter
c. Nitrococcus
D. Both A and E
66Nif gene is found in
A. Pseudomonas
B. Salmonella
C. Rhizobium
D. Mycobacterium
67Scientist credited with development of
formula for balanced solution of
mineral elements is?
( A . quad ) Knop
B. went
c. нill
D. Emerson
68The charcoal culture experiment is better than water culture experiment because
A. Plants get supporttt
B. Problem of aeration is removed
c. Charcoal is an inert substance
D. All of the above
69Hydroponics is growing plants in
A. water
B. Soil culture
c. Solution of mineral nutrients
D. Tissue culture medium
70Describe the nodule formation in
leguminous plants.
71Which of the following is not included in micronutrients?
( A cdot Z n ) and ( M n )
B. B and Cu
c. ( mathrm{Cl} ) and ( mathrm{Ni} )
D. K and s
72Which of the following can fix atmospheric nitrogen directly?
A . Pea
B. Brassica
c. castor
D. Petunia
73The framework elements of the plants
A. Magnesium, copper and iron
B. Copper, carbon and oxygen
c. Manganese, calcium and nitrogen
D. Carbon, hydrogen and oxygen
74What word describes the relationship between the plant and the nitrogen fixing bacteria?
A. Parasitic
B. Carnivorous
c. Infection
D. Mutualistic, saprophytes
75Fill in the blanks with approriate words. Elements required by plants in relatively large amounts are ……….. and in very small amounts are11
76Which of the following is a free-living nitrogen fixing bacterium present in the soil?
A . Azotobacter
B. Nitrosomonas
c. Rhizobium
D. Pseudomonas
77Which one of the following roles is not charcteristic of an essential element?
A. Being a component of biomolecules
B. Changing the chemistry of soil
c. Being a structural component of energy related chemical compounds.
D. Activation or inhibition of enzymes.
78Read the following statements and mark them as True (T) or False (F)
(a) Plants can assimilate ammonium
ions only
(c) Rhizobium is an obligation anaerobe
(c) In legumes, the nodule is formed by the inner cortex and pericycle cells.
79Non-mineral essential elements are
A. Carbon, Hydrogen and Oxygen
B. Hydrogen, Nitrogen and Sulphur
C. Hydrogen, Nitrogen and Fluorine
D. Chlorine, Fluorine and Nitrogen
80Why are root nodules useful for the
81Which one of the following statements
can best explain the term critical
concentration of an essential element?
A. Essential element concentration below which plant growth is retarded
B. Essential element concentration below which plant growth becomes enhanced
C. Essential element concentration below which plant remains in the vegetative phase
D. None of the above
82Select the correct statement regarding
“A trace element is an element which”.
( A cdot ) Is a radio active and can be traced by Geiger counter
B. Is required in very minute amounts.
C. Draws other element out of protoplasm.
D. Was one of the first to be discovered in protoplasm.
83What are the indications for mineral
deficiency in plants?
84Explain the steps involved in the formation of root nodule.11
85Nitrifying bacteria convert
A. Nitrate to nitrogen
B. Ammonia to nitrogen
C. Nitrogen into soluble form
D. Ammonia to nitrate
86Which of the following is a macronutrient?
A. Mn
в. Мв
( c cdot c u )
D. zn
87Micronutrients are needed in amounts
A. ( 8 mathrm{m} ) mole/kg dry matter
B. ( 18 mathrm{m} ) mole/kg dry matter
c. ( 25 mathrm{m} ) mole/kg dry matter
D. 30m mole/kg dry matter
88In Aulosira, Tolypothrix and Nostoc, are the sites for nitrogen fixation
A. Vesicles
B. Arbuscles
c. Akinetes
D. Heterocysts
89Explain the steps involved in the formation of root module.11
90Match the element with its associated
functions/roles and choose the correct
option given among below.
91What do you understand by symbiotic nitrogen fixation? Describe the role of leghaemoglobin in nitrogen fixation. Outline the process of nitrogen fixation as it takes place in the
bacteroid inhabiting a legume nodule.
92What is he agriculture done in fresh water is known as?11
93Mineral requirement is studied through hydroponics which is related to growing plants in
A. Soil
B. Air
c. solution
D. Ponds
94The four elements called “big-four” which make up ( 95 % ) of all elements found in a living system are
A. ( mathrm{C}, mathrm{H}, mathrm{O}, mathrm{N} )
B. ( mathrm{C}, mathrm{H}, mathrm{O}, mathrm{P} )
c. ( mathrm{c}, ) н, ( 0, mathrm{s} )
D. ( mathrm{C}, mathrm{N}, mathrm{O}, mathrm{P} )
95Choose the correct answer from the
alternatives given
Which of the following is not a macronutrient?
A . ca
B. P
( c . ) мn
96The symbiotic nitrogen fixing bacterium in root nodules of legumes is
A. Pseudomonas
B. Bacillus
c. Rhizobium
D. Nitrobacter
97Select out the odd one with respect to relative amount?
в. Мв
( c . ) мп
98The function of leghemoglobin in the root nodules of legumes is
A. Oxygen removal
B. Inhibition of nitrogenase activity
c. Expression of nif gene
D. Nodule differentiation
99Hydroponic is a technique of growing
A. Submerged plants
B. Free floating aquatic plants
C . Terrestrial plants in sand
D. Terrestrial plants in water containing nutrients
100When we boil tulsi leaves in water
water acquires a characteristic smell of leaves because
A. Smell of leaves diffuse in water
B. Leaves melt in water
c. Stored wastes in the leaves dissolve in water
D. Leaves pollute water
101Enzyme pepsin acts upon food at a pH of about
A. 3 to split proteins
B. 2 to split carbohydrate
C. 7 to change protein into peptones
D. 2 to change protein in amino acids

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