Q. No.The meristem that helps grasses regenerate parts removed by the grazing herbivores is the:
| 1. | Shoot apical meristem | 2. | Root apical meristem |
| 3. | Intercalary meristem | 4. | Lateral meristem |
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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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1. Fascicular vascular cambium
2. Intercalary meristem
3. Interfascicular meristem
4. Cork cambium
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All the following regarding parenchyma tissue in plants are correct except:
| 1. | Cells are generally isodiametric |
| 2. | Cell walls are generally thick |
| 3. | Cell walls are made of cellulose |
| 4. | They perform photosynthesis, storage and secretion |
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All the following regarding collenchyma tissue in plants are correct except:
| 1. | It occurs below the epidermis of stem and leaves in most monocots |
| 2. | It is found either as a homogenous layer or in patches |
| 3. | Cells are much thickened at the corners |
| 4. | Intercellular spaces are absent |
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All the following regarding sclerenchyma tissue in plants are correct except:
| 1. | Cells have thick lignified walls |
| 2. | Cells are usually dead and without protoplasts |
| 3. | It provides mechanical support to plant organs |
| 4. | It can assimilate food when it contains chloroplasts |
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Complex tissues in a plant:
1. are composed of one type of cell performing same function
2. are composed of one type of cell performing different functions
3. are composed of more than one type of cells working together as a unit
4. are composed of more than one type of cells working independently of each other
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The xylem tissue in gymnosperms lacks:
1. Tracheids
2. Vessels
3. Xylem fibers
4. Xylem parenchyma
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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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Phloem in angiosperms is composed of all the following except:
| 1. | Sieve cells | 2. | Companion cells |
| 3. | Phloem parenchyma | 4. | Phloem fibers |
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