Q. No.Which one of the following is not a lateral meristem
1. Interfascicular cambium
2. Phellogen
3. Intercalary meristem
4. Intrafascicular cambium
1. Interfascicular cambium
2. Phellogen
3. Intercalary meristem
4. Intrafascicular cambium
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In land plants, the guard cells differ from other epidermal cells in having
1. Cytoskeleton
2. Mitochondria
3. Endoplasmic reticulum
4.Chloroplasts
The cork cambium, cork and secondary cortex are collectively called
1. Phelloderm
2. Phellogen
3. Periderm
4. Phellem
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Some vascular bundles are described as open because these
1. are surrounded by pericycle but no endodermis
2. are capable of producing secondary xylem and phloem
3. possess conjunctive tissue between xylem and phloem
4. are not surrounded by pericycle
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Companion cells are closely associated with
1. Sieve elements
2. Vessel elements
3. Trichomes
4. Guard cells
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Water containing cavities in vascular bundles are found in
| 1. Sunflower | 2. Maize |
| 3. Cycas | 4. Pinus |
Gymnosperms are also called soft wood spermatophytes because they lack
1. Cambium
2. Phloem fibres
3. Thick-walled tracheids
4. Xylem fibres
As compared to a dicot root, a monocot root has
1. More abundant secondary xylem
2. Many xylem bundles
3. Inconspicuous annual rings
4. Relatively thicker periderm
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