Q. No.A Transverse section of stem is stained first with safranin and then with fast green following the usual schedule of double staining for the preparation of a permanent slide. What would be the colour of the stained xylem and phloem?
1.
Red and green
2.
Green and red
3.
Orange and yellow
4.
Purple and orange
3. Match the following columns.
|
Column I |
Column II |
|
A. Cuticle B. Bulliform cells C. Stomata D. Epidermis |
1. Guard cells 2. Single layer 3. Waxylayer 4. Empty colourless cell |
Codes
| Options: | A | B | C | D |
| 1. | 3 | 4 | 1 | 2 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 3 | 2 | 4 | 1 |
| 4. | 3 | 2 | 1 | 4 |
Cells of this tissue are living and show angular wall thickning. They also provide mechanical support. The tissue is
1. xylem
2. sclerenchyma
3. collenchyma
4. epidermis
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
Phellogen and phellem respectively denote
| 1. | cork and cork cambium |
| 2. | cork cambium and cork |
| 3. | secondary cortex and cork |
| 4. | cork and secondary cortex |
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 |
A plant tissue, when stained, showed the presence of hemicellulose and pectin in the cell walls of its cells. The tissue represents
| 1. | collenchyma | 2. | sclerenchyma |
| 3. | xylem | 4. | meristem |
14. Fibres are likely to be absent in
(a) secondary phloem
(b) secondary xylem
(c) primary phloem
(d) leaves
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