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question_answer1)
Which of the following elements is not required by plants for their normal healthy growth [CPMT 1975, 77, 84]
A)
Calcium done
clear
B)
Magnesium done
clear
C)
Lead done
clear
D)
Iron done
clear
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question_answer2)
In plant nutrition elements are classified as major or minor depending on
A)
Their availability in the soil done
clear
B)
Their relative production in the ash obtained after burning the plants done
clear
C)
The relative amounts required by the plants done
clear
D)
Their relative importance in plant growth done
clear
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question_answer3)
Non-essential element in plant is [NCERT 1978]
A)
Barium done
clear
B)
Magnesium done
clear
C)
Potassium done
clear
D)
Calcium done
clear
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question_answer4)
Which of the following, one element has not been proved to be essential in plants [CPMT 1980]
A)
Potassium done
clear
B)
Sodium done
clear
C)
Zinc done
clear
D)
Iron done
clear
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question_answer5)
Plant ash is an indication of [CPMT 1980]
A)
Mineral salts absorbed by the plants done
clear
B)
Organic matter of the plant done
clear
C)
Only mineral salts done
clear
D)
None of the above done
clear
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question_answer6)
An essential element is one [CPMT 1987; MP PMT 1990]
A)
Improve plant growth done
clear
B)
Present in plant ash done
clear
C)
Is indispensable for growth and is irreplaceable done
clear
D)
Available in soil done
clear
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question_answer7)
Hydroponics are [EAMCET 1989;Pb. PMT 1999; KCET 1999]
A)
Growing of aquatic plants done
clear
B)
Growing of floating aquatic plants done
clear
C)
Growing of plants in sand done
clear
D)
Growing of plants aqueous balanced nutrient done
clear
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question_answer8)
How the mineral contents of the plant known
A)
Titrimetric method done
clear
B)
Calorimetric method done
clear
C)
Ash analysis done
clear
D)
All done
clear
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question_answer9)
Necrosis means
A)
Yellow spots on the leaves done
clear
B)
Death of tissue and decomposition done
clear
C)
Darkening of green colour in leaves done
clear
D)
None of the above done
clear
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question_answer10)
Oily seeds contain
A)
Porphyrin done
clear
B)
Chlorine done
clear
C)
Lecithin done
clear
D)
Arginine done
clear
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question_answer11)
Hydroponics is a method of [MP PMT 1992; Pb. PMT 1999]
A)
Study of the development of soil done
clear
B)
Study of soil protection done
clear
C)
Growth of plants in liquid culture medium done
clear
D)
Growing plants in laboratory done
clear
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question_answer12)
In hydrophytic plants, water and salts are absorbed by [MP PMT 1992]
A)
Roots done
clear
B)
Leaves done
clear
C)
Stem done
clear
D)
Outer layer of plants done
clear
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question_answer13)
Which one is not an essential element in plants [MP PMT 1992]
A)
Iron done
clear
B)
Boron done
clear
C)
Sulphur done
clear
D)
Cadmium done
clear
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question_answer14)
Minerals of soil are derived from
A)
Rocks done
clear
B)
Clay done
clear
C)
Sub soil done
clear
D)
Organisms done
clear
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question_answer15)
Aeroponic is also called as
A)
Soil less cultivation of plants done
clear
B)
Parthenocarpy done
clear
C)
Vivipary done
clear
D)
Phytotron done
clear
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question_answer16)
If a dried leaf is taken in a crucible and heated to\[{{600}^{o}}C\]a gray coloured powder is left behind. It is referred to as
A)
Wilting percentage done
clear
B)
Protein content of the plant done
clear
C)
Plant ash done
clear
D)
Dry weight done
clear
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question_answer17)
Which one of the following scientists used the nutrient culture solution in hydroponic cultures [MP PMT 1995]
A)
Sachs done
clear
B)
Webster done
clear
C)
Wallace done
clear
D)
Knop done
clear
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question_answer18)
Which group of element is not essential for a normal plant [CPMT 1975, 77, 84; DPMT 1975, 84; AFMC 1984; JIPMER 1985]
A)
Potassium, calcium, magnesium done
clear
B)
Iron, zinc, manganese, boron done
clear
C)
Lead, nickel, iodine, sodium done
clear
D)
Magnesium, iron, molybdenum done
clear
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question_answer19)
The charcoal culture experiment is better than water culture experiment because
A)
Plants get support done
clear
B)
Problem of aeration is removed done
clear
C)
Charcoal is an inert substance done
clear
D)
All the above done
clear
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question_answer20)
Technique of growing plants without soil in nutrient solutions is called [KCET 1994; EAMCET 1995; AMU 2005]
A)
Parthenogenesis done
clear
B)
Hydroponics done
clear
C)
Aquaculture done
clear
D)
Tissue culture done
clear
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question_answer21)
Which of the following element is not essential for plants [CBSE PMT 1996]
A)
Iron done
clear
B)
Zinc done
clear
C)
Potassium done
clear
D)
Iodine done
clear
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question_answer22)
Which of the following is not caused by deficiency of mineral nutrition [CBSE PMT 1997]
A)
Necrosis done
clear
B)
Chlorosis done
clear
C)
Etiolation done
clear
D)
Shortening internode done
clear
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question_answer23)
Hydroponics is a [CPMT 1998]
A)
Soilless culture done
clear
B)
Water less Culture done
clear
C)
Airless culture done
clear
D)
None of these done
clear
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question_answer24)
Cultivation by sand culture is also called [MP PMT 1999]
A)
Soilless cultivation done
clear
B)
Greenhouse effect done
clear
C)
Photorespiration done
clear
D)
None of these done
clear
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question_answer25)
Who gave the criteria of essentiality
A)
R. Hill done
clear
B)
F.F. Blackman done
clear
C)
M.P. Kaushik done
clear
D)
D.L. Arnon done
clear
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question_answer26)
Inorganic nutrients are present in the soil in the form of [MP PMT 1999]
A)
Molecules done
clear
B)
Atoms done
clear
C)
Electrically charged ions done
clear
D)
Parasite done
clear
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question_answer27)
Phytotron is a device [MHCET 2001]
A)
To grow plants in controlled conditions done
clear
B)
For fish culture done
clear
C)
For bee culture done
clear
D)
To grow silkmoth done
clear
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question_answer28)
Tracer elements are [MP PMT 2002]
A)
Micro elements done
clear
B)
Macro-elements done
clear
C)
Radio isotopes done
clear
D)
Vitamins done
clear
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question_answer29)
Which of the following is used as green manure [BHU 2003]
A)
Azolla done
clear
B)
Azadiracta indica done
clear
C)
Crotolarea juncea done
clear
D)
Hevea brassiliansis done
clear
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question_answer30)
The number of essential elements required for normal growth of plant is [BHU 2003]
A)
10 done
clear
B)
16 done
clear
C)
20 done
clear
D)
25 done
clear
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question_answer31)
The plants that grow on saline soils with high concentration of, \[MgS{{O}_{4}}\] and \[MgC{{l}_{2}}\] are called [Kerala CET 2003]
A)
Succulents done
clear
B)
Mesophytes done
clear
C)
Xerophytes done
clear
D)
Halophytes done
clear
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question_answer32)
Essential elements for plants are [MP PMT 2005]
A)
Life cycle incomplete without it done
clear
B)
Non replaceable done
clear
C)
Metabolism (necessary for it) done
clear
D)
All above done
clear
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question_answer33)
Which of the following ions of heavy metals participate in process of photosynthesis in higher plants [AMU 2005]
A)
Pb, Fe, Ni, Co done
clear
B)
Mg, Zn, Cu, Hg done
clear
C)
Mg, Mn, Co, Fe done
clear
D)
Mg, Cu, Mn, Fe done
clear
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