The total essential elements for plant are

1. 20

2. 17

3. 24

4. 15

Subtopic:  Criteria for Essentiality of Elements |
 84%
Level 1: 80%+
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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%
Level 2: 60%+
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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%
Level 1: 80%+
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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%
Level 2: 60%+
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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%
Level 2: 60%+
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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%
Level 2: 60%+
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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++1

Subtopic:  Criteria for Essentiality of Elements |
 86%
Level 1: 80%+
Hints

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%
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 |
 96%
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 |
 87%
Level 1: 80%+
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