Which of the following is not a component of  energy related chemical compound in plant?

(1) Magnesium in chlorophyll

(2) Phosphorus in ATP

(3) Carbon in DNA

(4) Both A and C

Subtopic:  Criteria for Essentiality of Elements |
 72%
Level 2: 60%+
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Phosphoenol pyruvate carboxylase needs which of the following ions for activation?

(1) Zn++

(2) Mg++

(3) Mn++

(4) Ca++

Subtopic:  Criteria for Essentiality of Elements |
 90%
Level 1: 80%+
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Nitrogenase needs which of the following ion for activation?

(1) Cr

(2) Mo

(3) W

(4) Sg

Subtopic:  Criteria for Essentiality of Elements |
 98%
Level 1: 80%+
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Alcohol Dehydrogenase needs which of the following ion for activation?

(1) Zn++

(2) Mo

(3) Cr

(4) Mg++

Subtopic:  Criteria for Essentiality of Elements |
 93%
Level 1: 80%+
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For the opening and closing of stomata which of the following ion is important?

(1) Ca++

(2) Mo

(3) Cr

(4) K+

Subtopic:  Criteria for Essentiality of Elements |
 97%
Level 1: 80%+
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Nitrogen

Find the wrong one.

(1) Essential nutrient element required by plants in the greatest amount

(2) It is absorbed mainly as nitrite

(3) It is required by all parts of the plants particularly the meristematic tissue and metabolically active cells

(4) One of the major constituents of proteins, Nucleic Acid and vitamins

Subtopic:  Nitrogen Nutrition in Plants |
 82%
Level 1: 80%+
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Nitrogen is mainly absorbed as

(1) Nitrite

(2) Nitrate

(3) Ammonium

(4) All of these

Subtopic:  Mineral Function |
 75%
Level 2: 60%+
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Which of the following form is absorbed for the requirement of Phosporus?

(1) Dihydrogen Phosphate, Hydrogen phosphate

(2) Phosphoric Acid

(3) Phosphorite

(4) Phosphic Acid

Subtopic:  Mineral Function |
 75%
Level 2: 60%+
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Phosphorus is not a component of

(1) Cell membrane

(2) Certain Proteins

(3) Nucleosides

(4) Nucleotides

Subtopic:  Mineral Function |
 80%
Level 1: 80%+
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Which of the following ion is required more in meristematic tissues, buds, leaves and root tips?

(1) K+

(2) Cl-

(3) P

(4) N

Subtopic:  Mineral Function |
 56%
Level 3: 35%-60%
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