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Q. No.
| 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
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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 |
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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 |
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To unlock all the explanations of this course, you need to be enrolled.
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
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To unlock all the explanations of this course, you need to be enrolled.
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 |
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To unlock all the explanations of this course, you need to be enrolled.
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
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To unlock all the explanations of this course, you need to be enrolled.
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
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To unlock all the explanations of this course, you need to be enrolled.
- 1(current)
Q. No.
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