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Q. No.Consider the two statements:
| Statement I: | Plant growth and development is intimately linked to the water status of the plant. |
| Statement II: | The plant cells grow in size by cell enlargement which in turn requires water. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Growth |
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Consider the given two statements:
| Assertion (A): | Plant development is considered 'open' because plants retain the ability to form new organs throughout their life. |
| Reason (R): | Plants exhibit phenotypic plasticity. |
| 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: Growth |
71%
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Consider the two statements:
| Assertion (A): | Plant growth and development is intimately linked to the water status of the plant. |
| Reason (R): | Plant can loose a significant amount of water through transpiration. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | (A) is True, (R) is False |
| 4. | (A) is False, (R) is True |
Subtopic: Growth |
72%
From NCERT
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Consider the given two statements:
| Assertion (A): | Water is essential for the growth of plants |
| Reason (R): | Water pressure (turgor pressure) within cells drives cell expansion and growth. |
| 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. |
Subtopic: Growth |
85%
From NCERT
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Identify the incorrect statement:
| 1. | Plant growth generally is indeterminate. |
| 2. | Formation of interfascicular cambium is a result of redifferentiation. |
| 3. | Differentiation in plants is also open. |
| 4. | Heterophylly in coriander is an example of plasticity. |
Subtopic: Differentiation, Dedifferentiation and Redifferentiation |
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The living differentiated cells, that have lost the capacity to divide, can regain the capacity of
division under certain conditions. This phenomenon is termed as:
1. differentiation
2. dedifferentiation
3. redifferentiation
4. pseudodifferentiation
division under certain conditions. This phenomenon is termed as:
1. differentiation
2. dedifferentiation
3. redifferentiation
4. pseudodifferentiation
Subtopic: Development | Differentiation, Dedifferentiation and Redifferentiation |
85%
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Consider the given two statements:
| Assertion (A): | Plants exhibit high phenotypic plasticity. |
| Reason (R): | They can modify their growth and development in response to environmental conditions. |
| 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: Development |
91%
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:
| COLUMN I | COLUMN II | ||
| A | Auxins | P | Indole compounds |
| B. | Cytokinins | Q | Skoog and Miller |
| C. | Gibberellins | R | Terpenes |
| D. | Ethylene | S | Cousins |
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | P | R | S | Q |
| 3. | R | P | Q | S |
| 4. | R | S | P | Q |
Subtopic: Growth Hormones & Auxin |
88%
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Match the following concerning the activity/function and the phytohormone involved:-
| (a) | Fruit ripener | (i) | Abscisic acid |
| (b) | Herbicide | (ii) | GA 3 |
| (c) | Bolting agent | (iii) | 2, 4-D |
| (d) | Stress hormone | (iv) | Ethephon |
Select the correct option from following:-
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (iv) | (ii) | (i) | (iii) |
Subtopic: Growth Hormones & Auxin | Gibberellin | Ethylene | Abscisic Acid |
93%
From NCERT
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Consider the given two statements:
| Statement I: | Auxins like NAA (naphthalene acetic acid) and 2, 4-D (2, 4-dichlorophenoxyacetic) have been isolated from plants. |
| Statement II: | IAA and indole butyric acid (IBA) are synthetic auxins. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is correct |
Subtopic: Growth Hormones & Auxin |
84%
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