1. | Copper | 2. | Manganese |
3. | Molybdenum | 4. | Magnesium |
List I | List II | ||
A. | Iron | I. | Synthesis of auxin |
B. | Zinc | II. | Component of nitrate reductase |
C. | Boron | III. | Activator of catalase |
D. | Molybdenum | IV | Cell elongation and differentiation |
Options: | A | B | C | D |
1. | II | IV | I | III |
2. | III | II | I | IV |
3. | II | III | IV | I |
4. | III | I | IV | II |
1. | Potassium | 2. | Calcium |
3. | Nitrogen | 4. | Phosphorus |
Assertion (A): | Essential elements can be structural elements of a cell. |
Reason (R): | Essential elements are components of biomolecules present in a cell. |
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. | Both (A) and (R) are false. |
Assertion (A): | In the absence of any particular essential element, plants show certain morphological changes. |
Reason (R): | Each essential element has one or more specific structural or functional roles in plants. |
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. | Both (A) and (R) are false. |
Assertion (A): | Excess of manganese in plants induces deficiency symptoms of calcium. |
Reason (R): | Manganese inhibits calcium translocation in the shoot apex. |
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. | Both (A) and (R) are false. |
Assertion (A): | Calcium is not easily released from the cell. |
Reason (R): | Calcium is a part of the structural component of the cell. |
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. | Both (A) and (R) are false. |
Assertion (A): | To identify the deficient element, the study of all the symptoms developed in different parts of the plants is required. |
Reason (R): | Any mineral ion concentration in tissues that reduces the dry weight of tissues by about 10 percent is considered toxic. |
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. | Both (A) and (R) are false. |
Assertion (A): | Weathering or breakdown of rocks enriches the soil with dissolved ions and inorganic salts. |
Reason (R): | Minerals salts are translocated through the xylem along with the descending stream of water, which is pulled down by transpirational pull. |
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. | Both (A) and (R) are false. |
Assertion (A): | Plants compete with microbes for the nitrogen that is available in the soil. |
Reason (R): | Nitrogen is a limiting nutrient for both natural and agricultural ecosystems. |
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. | Both (A) and (R) are false. |