- 1(current)
Q. No.Select the correct statements based on the information shown below in the diagrammatic representation of location of root apical meristem, shoot apical meristem and vascular cambium where the arrows exhibit the direction of growth of cells and organs:
| Statement I: | The root apical meristem and the shoot apical meristem are responsible for the primary growth of the plants and principally contribute to the elongation of the plants along their axis. |
| Statement II: | In dicots and gymnosperms, the lateral meristems, vascular cambium and cork-cambium appear later in life and cause the increase in the girth of the organs in which they are active. |
| 1. | Both Statement I and Statement II |
| 2. | Only Statement I |
| 3. | Only Statement II |
| 4. | Neither Statement I nor Statement II |
Subtopic: Â Differentiation, Dedifferentiation and Redifferentiation |
 95%
From NCERT
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Formation of interfascicular cambium and cork cambium is possible most importantly because of:
| 1. | Differentiation | 2. | Dedifferentiation |
| 3. | Redifferentiation | 4. | Reverse differentiation |
Subtopic: Â Differentiation, Dedifferentiation and Redifferentiation |
 82%
From NCERT
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To differentiate into a tracheary element, a plant cell:
| I: | would lose its protoplasm |
| II: | develops a strong, elastic lignocellulosic secondary wall |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Subtopic: Â Differentiation, Dedifferentiation and Redifferentiation |
 89%
From NCERT
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Consider the given two statements:
| I: | Differentiation in plants is open. |
| II: | Cells/tissues arising out of the same meristem have different structures at maturity. |
| 1. | Both I and II are correct and II explains I |
| 2. | Both I and II are correct but II does not explain I |
| 3. | I is correct but II is incorrect |
| 4. | I is incorrect but II is correct |
Subtopic: Â Differentiation, Dedifferentiation and Redifferentiation |
 57%
From NCERT
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In plants, the living differentiated cells, have lost the capacity of division under certain conditions. This phenomenon is termed as:
| 1. | Dedifferentiation | 2. | Proto-differentiation |
| 3. | Redifferentiation | 4. | Secondary differentiation |
Subtopic: Â Differentiation, Dedifferentiation and Redifferentiation |
 56%
From NCERT
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To differentiate into a tracheary element, a cell would:
| 1. | Gain protoplasm |
| 2. | Become multinucleate |
| 3. | Assimilate lot of collagen and elastin |
| 4. | Develop lignocellulosic secondary cell wall |
Subtopic: Â Development |Â Differentiation, Dedifferentiation and Redifferentiation |
 80%
From NCERT
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Development is a term that includes all changes that a plant goes through during its life cycle:
| 1. | till germination of the seed |
| 2. | during its vegetative growth |
| 3. | from germination till flowering |
| 4. | from germination to senescence |
Subtopic: Â Development |Â Differentiation, Dedifferentiation and Redifferentiation |
 88%
From NCERT
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- 1(current)
Q. No.
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