Q. No.Which one is true for spongy parenchyma
1.abaxially placed to palisade parenchyma
2.oval or round & loosely arranged cells
3. extends to the abaxial epidermis
4.All of the above
The tissue between the upper and lower epidermis is called
(1) Chlorophyll
(2) Mesophyll
(3) Cambium
(4) Endodermis
Which of the following is true for palisade parenchyma?
1. adaxially placed
2. elongated cells
3. vertically and parallely placed
4. All of the above
Which one is true for dicot leaf
1. veins thickness vary
2. reticulate venation is present
3. all vascular bundles are similar in size
4. Both 1 and 2
Vascular bundles are surrounded by a layer of thick walled ________.
1. Bundle sheath cells
2. Cuticle
3. Casparian strip
4. Waxy cell
Midrib and veins of the represent
(1)vascular bundle
(2) cortex
(3)palisade parenchyma
(4)spongy parenchyma
Consider the following statements about dicot leaf:
| I: | The epidermis which covers both the upper surface (adaxial epidermis) and lower surface (abaxial epidermis) of the leaf has a conspicuous cuticle. |
| II: | More stomata present on upper surface. |
| III: | Mesophyll is differentiated into palisade and spongy parenchyma. |
Which of the above statements are true?
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II and III |
The size of the vascular bundles are dependent on the size of the
1. veins
2. air cavities
3. chloroplast
4. All of the above
The main parts of the lamina of the dorsiventaral leaf are
(1)epidermis
(2)mesophyll tissues
(3)vascular system
(4)All of the above
Spongy tissue is generally situated towards which side in dorsiventral leaf ?
1. Abaxial
2. Adaxial
3. Upper
4. Ventral
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