I: | is constituted by some cells ‘left behind’ from shoot apical meristem during the formation of leaves and elongation of stems. |
II: | is present in the axils of leaves and is capable of forming a branch or a flower. |
Character | Dicot[Dorsiventral] | Monocot [Isobilateral] | |
1. | Presence of stomata | More on adaxial epidermis | More on abaxial epidermis |
2. | Mesophyll | Differentiated into palisade and spongy parenchyma | Not differentiated into palisade and spongy parenchyma |
3. | Venation | Mostly reticulate | Mostly parallel |
4. | Size of vascular bundle | Dependent on the size of veins | Near similar size except in main veins |
1. | wide variations in size of vascular bundles in the main veins |
2. | wide variations in size of vascular bundles except in the main veins |
3. | near similar size of vascular bundles in the main veins |
4. | near similar size of vascular bundles except in the main veins |
1. pericycle | 2. medullary rays |
3. endodermis | 4. hypodermis |
1. | cells that mature into secondary xylem towards pith and into secondary phloem towards periphery |
2. | cells that mature into secondary xylem towards periphery and into secondary phloem towards pith |
3. | cells that mature into primary xylem towards pith and into primary phloem towards periphery |
4. | cells that mature into primary xylem towards periphery and into primary phloem towards pith |
I. | In secondary growth in dicot stems, the amount of secondary phloem produced is more than secondary xylem |
II. | The cambium is generally more active on the outer side than the inner |
1. | Both I and II are true and II explains I |
2. | Both I and II are true but II does not explain I |
3. | I is true but II is false |
4. | Both I and II are false |