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Q. No.Match List I with List II:
List I
List II
A.
Manganese
I.
Pollen germination
B.
Potassium
II.
Chlorosis in older leaves
C.
Magnesium
III.
Necrosis
D.
Boron
IV.
Photosynthesis
Choose the correct answer from the options given below:
1. A-IV, B-III, C-I, D-II
2. A-II, B-I, C-IV, D-III
3. A-II, B-III, C-IV, D-I
4. A-IV, B-III, C-II, D-I
Subtopic: Mineral Function |
52%
From NCERT
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Match List I with List II:
Choose the correct answer from the options given below:
1. A -III, B - IV, C-II, D - I
2. A -II, B - I, C-IV, D - III
3. A -II , B - IV, C-I, D - III
4. A -IV , B - II , C-III, D - I
| List-I | List-II | ||
| A. | Nitrification | I. | Azotobacter |
| B. | Denitrification | II. | Nitrotobacter |
| C. | Free-living nitrogen fixation | III. | Rhizobium |
| D. | Symbiotic nitrogen fixation | IV. | Pseudomonas |
Choose the correct answer from the options given below:
1. A -III, B - IV, C-II, D - I
2. A -II, B - I, C-IV, D - III
3. A -II , B - IV, C-I, D - III
4. A -IV , B - II , C-III, D - I
Subtopic: Nitrogen Fixation | Nitrogen Metabolism |
84%
From NCERT
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In root nodules of legumes, leg-haemoglobin is important because it:
1. Facilitates oxygen supply to the root nodule
2. Protects nitrogenase enzymes from denaturation
3. Provides energy to the nitrogen fixing bacterium
4. Acts as a catalyst in transamination
1. Facilitates oxygen supply to the root nodule
2. Protects nitrogenase enzymes from denaturation
3. Provides energy to the nitrogen fixing bacterium
4. Acts as a catalyst in transamination
Subtopic: Nitrogen Fixation | Nodule formation |
79%
From NCERT
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Hints
Please attempt this question first.
Match List I with List II
Choose the correct answer from the options given below
1. A-IV, B-I, C-III, D-II
2. A-II, B-I, C-III, D-IV
3. A-II, B-III, C-I, D-IV
4. A-III, B-II, C-IV, D-I
| List I | List II |
| A. Boron | I. Splitting of water during photosynthesis |
| B. Manganese | II. Synthesis of auxin |
| C. Molybdenum | III. Component of nitrogenase |
| D. Zinc | IV. Pollen germination |
Choose the correct answer from the options given below
1. A-IV, B-I, C-III, D-II
2. A-II, B-I, C-III, D-IV
3. A-II, B-III, C-I, D-IV
4. A-III, B-II, C-IV, D-I
Subtopic: Mineral Function |
90%
From NCERT
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Which of the following is not a ‘beneficial’ element required by higher plants?
1. Sodium
2. Silicon
3. Cobalt
4. Nickel
1. Sodium
2. Silicon
3. Cobalt
4. Nickel
Subtopic: Classification of Nutrients |
73%
From NCERT
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Match each item in COLUMN I with one in COLUMN II and select the correct match from the codes given:
Codes:
| COLUMN I | COLUMN II | ||
| A | Elements that are components of biomolecules | P | C, H, O, N |
| B | Elements that are components of energy – related chemical compounds | Q | Mg, P |
| C | Elements that activate or inhibit enzymes | R | Zn, Mo, Mg |
| D | Elements that can alter the osmotic potential of the soil | S | K |
Codes:
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | Q | R | S | P |
| 3. | R | S | P | Q |
| 4. | S | R | Q | P |
Subtopic: Mineral Function |
90%
From NCERT
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Which essential element is important for the opening and closing of stomata in higher plants?
1. Calcium
2. Sodium
3. Potassium
4. Phosphorus
1. Calcium
2. Sodium
3. Potassium
4. Phosphorus
Subtopic: Mineral Function |
89%
From NCERT
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The essential element, Calcium, is required by the higher plants for:
I. Synthesis of cell wall
II. Formation of mitotic spindle
III. Normal functioning of the cell membranes
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
I. Synthesis of cell wall
II. Formation of mitotic spindle
III. Normal functioning of the cell membranes
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
Subtopic: Mineral Function |
80%
From NCERT
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Iron in plants:
I. is mainly obtained in the form of ferric ions.
II. is reversibly reduced from Fe3+ to Fe2+ during electron transfer.
III. inactivates catalase enzyme.
1. Only I is correct
2. Both I and II are incorrect
3. Only III is incorrect
4. I, II and III are correct
I. is mainly obtained in the form of ferric ions.
II. is reversibly reduced from Fe3+ to Fe2+ during electron transfer.
III. inactivates catalase enzyme.
1. Only I is correct
2. Both I and II are incorrect
3. Only III is incorrect
4. I, II and III are correct
Subtopic: Mineral Function |
From NCERT
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Molybdenum is a component of:
I. Nitrogenase
II. Nitrate reductase
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
I. Nitrogenase
II. Nitrate reductase
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Mineral Function |
75%
From NCERT
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