Q. No.The apical meristems in the plants:
1.
occur at the tips of both roots and shoots and produce primary tissues
2.
occur at the tip of root and base of the stem and produce secondary tissues
3.
occur at the base of root and tip of the stem and produce primary tissues
4.
occur at the tips of both roots and shoots and produce secondary tissues
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In stems:
| 1. | the primary xylem is endarch with protoxylem towards the center and metaxylem towards the periphery |
| 2. | the primary xylem is endarch with metaxylem towards the center and protoxylem towards the periphery |
| 3. | the primary xylem is exarch with protoxylem towards the center and metaxylem towards the periphery |
| 4. | the primary xylem is exarch with metaxylem towards the center and protoxylem towards the periphery |
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Root hairs are:
1. unicellular extensions of subsidiary cells
2. unicellular elongations of epidermal cells
3. unicellular elongations of ground tissue cells
4. appendages of the cuticle
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Match the following and choose the correct option from below:
|
A. Meristem |
i. Photosynthesis, storage |
|
B. Parenchyma |
ii. Mechanical support |
|
C. Collenchyma |
iii. Actively dividing cells |
|
D. Sclerenchyma |
iv. Stomata |
|
E. Epidermal tissue |
v. Sclereids |
Options:
| A | B | C | D | E | |
|
1. |
i |
iii |
v |
ii |
iv |
|
2. |
iii |
i |
ii |
v |
iv |
|
3. |
ii |
iv |
v |
i |
iii |
|
4. |
v |
iv |
iii |
ii |
i |
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Identify the tissue system from among the following:
| 1. Parenchyma | 2. Xylem |
| 3. Epidermis | 4. Phloem |
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A conjoint and open vascular bundle will be observed in the transverse section of
| 1. | Monocot root | 2. | Monocot stem |
| 3. | Dicot root | 4. | Dicot stem |
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A plant tissue, when stained, showed the presence of hemicellulose and pectin in cell wall of its cells. The tissue represents
1. Collenchyma
2. Sclerenchyma
3. Xylem
4. Meristem
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Fibres are likely to be absent in
1. Secondary phloem
2. Secondary Xylem
3. Primary phloem
4. Leaves
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Consider the given two statements:
| I: | Parenchyma cells in plants play an important role in regeneration and wound healing. |
| II: | They are living at maturity and usually have only primary walls. |
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 True but II is False
4. Both I and II are False
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