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Q. No.Assertion: The enzyme nitrogenase is a Mo-Fe protein
Reason: Nitrogenase is found both in Rhizobium and Nostoc
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Subtopic: Nodule formation |
71%
From NCERT
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Assertion: Denitrification is carried by Thiobacillus
Reason: Thiobacillus reduces nitrate present in the soil into free \(N_2\)
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Reason: Thiobacillus reduces nitrate present in the soil into free \(N_2\)
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Subtopic: Nitrogen Fixation | Nitrogen Metabolism |
72%
From NCERT
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Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere?
| 1. | Aerobic nitrate oxidation, and nitrite reduction |
| 2. | Decomposition of organic nitrogen, and conversion of dinitrogen to ammonium compounds |
| 3. | Enteric fermentation in cattle, and nitrogen fixation by Rhizobium in root nodules of legumes |
| 4. | Anaerobic ammonium oxidation, and denitrification |
Subtopic: Nitrogen Fixation | Nitrogen Metabolism |
54%
From NCERT
NEET - 2013
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Assertion: The main symptom of manganese toxicity is the appearance of brown spots surrounded by chlorotic veins
Reason: The excess of Mn may induce the deficiencies of Ca, Mg and Fe
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Reason: The excess of Mn may induce the deficiencies of Ca, Mg and Fe
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Subtopic: Mineral Deficiency & Toxicity |
61%
From NCERT
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Assertion: Necrosis is tissue death
Reason: Necrosis is due to the deficiency of K, Cu, Mg, Ca
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Reason: Necrosis is due to the deficiency of K, Cu, Mg, Ca
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Subtopic: Mineral Deficiency & Toxicity |
54%
From NCERT
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Assertion: Sulphur is the main constituent of many coenzymes, ferredoxin and vitamins
Reason: Sulphur is found in amino acids like cystine, cysteine and methionine
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Reason: Sulphur is found in amino acids like cystine, cysteine and methionine
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Subtopic: Mineral Function |
60%
From NCERT
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Assertion: The deficiency symptoms appear in plants when the essential nutrients fall below the critical concentration
Reason: At a concentration below the critical value, the growth of plant is reduced
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Reason: At a concentration below the critical value, the growth of plant is reduced
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Subtopic: Criteria for Essentiality of Elements |
76%
From NCERT
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Assertion: Macronutrients are more important for plants than micronutrients
Reason: Micronutrients are required in large quantities
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Reason: Micronutrients are required in large quantities
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Subtopic: Classification of Nutrients |
53%
From NCERT
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Assertion: Minerals are absorbed by roots mainly by active process
Reason: Minerals are also absorbed by passive process
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Reason: Minerals are also absorbed by passive process
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Subtopic: Mechanism of Absorption of Elements |
75%
From NCERT
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Assertion(A): Elements like calcium are not easily released or are immobile.
Reason(R): They are a part of the structural components of a cell.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): They are a part of the structural components of a cell.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Mineral Deficiency & Toxicity |
74%
From NCERT
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