The total essential elements for plant are

(1) 20

(2) 17

(3) 24

(4) 15

Subtopic:  Criteria for Essentiality of Elements |
 85%
From NCERT
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Which of the following is not kept in beneficial elements?

(1) Na

(2) Si

(3) Co

(4) K

Subtopic:  Criteria for Essentiality of Elements |
 69%
From NCERT
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Which of the following is a beneficial element?

(1) Se

(2) Fe

(3) B

(4) Cl2

Subtopic:  Criteria for Essentiality of Elements |
 83%
From NCERT
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The beneficial elements are

(1) Required by higher plants

(2) Na,Si,Co,Se

(3) Other than 17 essential elements

(4) All of these

Subtopic:  Criteria for Essentiality of Elements |
 77%
From NCERT
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Which of the following is not a component of biomolecule is not contribute in structural elements of cell?

(1) C

(2) O

(3) N

(4) Mg

Subtopic:  Criteria for Essentiality of Elements |
 79%
From NCERT
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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 1 and 2

Subtopic:  Criteria for Essentiality of Elements |
 71%
From NCERT
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Which of the following act as an activator for ribulose bisphoshate carboxylase oxygenase?

(1) Zn++

(2) Mg++

(3) Mn+

(4) Ca++

Subtopic:  Criteria for Essentiality of Elements |
 87%
From NCERT
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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 |
 83%
From NCERT
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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 |
 96%
From NCERT
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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 |
 87%
From NCERT
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