All the following are examples of secondary or lateral meristems except:
1. | Fascicular vascular cambium | 2. | Intercalary meristem |
3. | Interfascicular meristem | 4. | Cork cambium |
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In conjoint type of vascular bundles:
I: | xylem and phloem are jointly situated on the same radius of vascular bundles. |
II: | xylem is usually located on the outer side of the phloem. |
1. Only I is correct | 2. Only II is correct |
3. Both are correct | 4. Both are incorrect |
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Casparian strips are:
1. | waxy deposition of suberin on only the tangential walls of the endodermal cells |
2. | waxy deposition of suberin on only the radial walls of the endodermal cells |
3. | waxy deposition of suberin on both tangential and radial walls of the endodermal cells |
4. | waxy deposition of lignin on both tangential and radial walls of the endodermal cells |
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During the formation of leaves and the elongation of stem, some cells are left behind from the shoot apical meristem and constitute the:
1. Leaf primordium
2. Shoot apical meristematic zone
3. Differentiating vascular tissue
4. Axillary bud
In a dicot root, the number of patches of xylem and phloem are usually:
1. | 2 to 4 | 2. | 4 to 6 |
3. | 6 to 8 | 4. | 8 to 10 |
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The term ‘stele’in a dicot root does not include:
1. | Endodermis | 2. | Pericycle |
3. | Vascular bundles | 4. | Pith |
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The xylem tissue in gymnosperms lacks:
1. Tracheids
2. Vessels
3. Xylem fibers
4. Xylem parenchyma
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Monocot root anatomy is different from the anatomy of dicot root in all the following aspects except:
1. More developed pith
2. Polyarch vascular bundles
3. Absence of secondary growth
4. Presence of multicellular root hairs
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The hypodermis of a dicotyledonous stem:
1. | is parenchymatous and synthesizes and stores food |
2. | is collenchymatous and provides mechanical strength to the young stem |
3. | is sclerenchymatous and provides mechanical strength to the young stem |
4. | is parenchymatous and provides mechanical strength to the young stem |
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In their phloem tissue, gymnosperms have:
1. Sieve cells and Companion cells
2. Albuminous cells and Sieve cells
3. Sieve tubes and Companion cells
4. Sieve tubes and Albuminous cells
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