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Q. No.Which of the following elements for growth directly aids in increasing the plant size?
1. Temperature
2. Gravity
3. Water
4. Light
1. Temperature
2. Gravity
3. Water
4. Light
Subtopic: Â Growth |
 53%
From NCERT
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Intracellular factors involved in the control of growth and development in plants will be:
1. Chemicals such as plant growth regulators
2. Physical factors like light temperature and oxygen.
3. Water
4. Genetic factors
1. Chemicals such as plant growth regulators
2. Physical factors like light temperature and oxygen.
3. Water
4. Genetic factors
Subtopic: Â Growth |Â Growth Model |Â Growth Terminology |Â Development |
 57%
From NCERT
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Consider the given two statements:
| Assertion (A): | Plant growth is intimately linked to the water status of the plant while development is not. |
| Reason (R): | The plant cells grow in size by cell enlargement which in turn requires water. |
| 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: Â Growth |
 50%
From NCERT
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Consider the given two statements:
Which of the following is correct?
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
| Statement I: | Differentiation in plant cells is an irreversible process, under normal condition, where cells acquire specific structures to perform specialized functions. |
| Statement II: | Dedifferentiation in plants occurs when previously differentiated cells regain the capacity to divide under certain conditions, forming meristematic tissues like cork cambium. |
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic: Â Growth |Â Differentiation, Dedifferentiation and Redifferentiation |
 65%
From NCERT
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Q. No.
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