Q. No.
Identify the incorrectly matched pair:
| 1. | Dicot root | Parenchymatous conjunctive tissue between xylem and phloem |
| 2. | Monocot root | Polyarch xylem bundles and well-developed pith |
| 3. | Isobilateral leaf | Palisade and spongy parenchyma in mesophyll |
| 4. | Dorsiventral leaf | Bulliform cells are absent |
Some vascular bundles are described as open because these:
| 1. | are not surrounded by pericycle |
| 2. | are surrounded by pericycle but no endodermis |
| 3. | are capable of producing secondary xylem and phloem |
| 4. | possess conjunctive tissue between xylem and phloem |
Given below is the diagram of a stomatal apparatus. In which of the following, all the four parts labelled as A, B, C and D are correctly identified:
| A | B | C | D | |
| 1. | Guard cell | Stomatal aperture | Subsidiary Cell | Epidermal Cell |
| 2. | Epidermal Cell | Guard Cell | Stomatal aperture | Subsidiary cell |
| 3. | Epidermal Cell | Subsidiary Cell | Stomatal aperture | Guard Cell |
| 4. | Subsidiary Cell | Epidermal Cell | Guard Cell | Stomatal aperture |
Compared to a dicot root, a monocot root has:
1. Many xylem bundles
2. Inconspicuous annual rings
3. Relatively thicker periderm
4. More abundant secondary xylem
A vessel less piece of stem possessing prominent sieve tubes would belong to
1. Pines
2. Eucalyptus
3. Grass
4. Trachodendron
When we peel the skin of a potato tuber, we remove
| 1. | Periderm | 2. | Epidermis |
| 3. | Cuticle | 4. | Sapwood |
Fibres are likely to be absent in
| 1. | Secondary phloem | 2. | Secondary Xylem |
| 3. | Primary phloem | 4. | Leaves |
In which of the following pairs of parts of a flowering plant is epidermis absent?
1. Root tip and shoot tip
2. Shoot bud and floral bud
3. Ovule and seed
4. Petiole and pedicel
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