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Q. No.Which one of the following process is responsible for the release of \(N_2\) in the atmosphere?
1. Industrial Nitrogen fixation
2. Ammonification
3. Denitrification
4. Biological nitrogen fixation
1. Industrial Nitrogen fixation
2. Ammonification
3. Denitrification
4. Biological nitrogen fixation
Subtopic: Nitrogen Metabolism |
75%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
Which of the following pair of micronutrients would help in the light phase of photosynthesis to help in the reaction leading to oxygen evolution?
1. Zinc and Chlorine
2. Manganese and Molybdenum
3. Molybdenum and Iron
4. Manganese and Chlorine
Subtopic: Mineral Function |
76%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
Which of the following elements is incorrectly paired with its function in a plant?
1. nitrogen component of nucleic acids, proteins, hormones, coenzymes
2. magnesium component of chlorophyll; activates many enzymes
3. phosphorus component of nucleic acids, phospholipids, ATP, several coenzymes
4. sulfur component of DNA; activates some enzymes
1. nitrogen component of nucleic acids, proteins, hormones, coenzymes
2. magnesium component of chlorophyll; activates many enzymes
3. phosphorus component of nucleic acids, phospholipids, ATP, several coenzymes
4. sulfur component of DNA; activates some enzymes
Subtopic: Mineral Function |
73%
From NCERT
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In a root nodule, the gene coding for nitrogenase
1. is inactivated by leghemoglobin.
2. is absent in active bacteroids.
3. is found in the cells of the pericycle.
4. is part of the Rhizobium genome
1. is inactivated by leghemoglobin.
2. is absent in active bacteroids.
3. is found in the cells of the pericycle.
4. is part of the Rhizobium genome
Subtopic: Nodule formation |
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Hints
Match List I with List II:
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
| 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 |
80%
From NCERT
Please attempt this question first.
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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NEET 2023 - Target Batch - Aryan Raj Singh
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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 |
91%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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