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प्रश्न
How would you distinguish monocots from dicots?
उत्तर १
Differences between monocots and dicots are as follows :
| Monocot | Dicot | |
| 1 | The seeds contain one cotyledon | The seeds contain two cotyledons |
| 2 | Flowers are generally trimerous | Flowers are generally pentamerous or tetramerous |
| 3 | Pollen grains generally possess a single germ pore | Pollen grains commonly have three germ pores |
| 4 | Leaves generallypossess parallel venation | Leaves posses reticluate venation |
| 5 | Primary root is short lived. Tap root is absent. Adventitious roots present | Primary root is long lived and it forms tap root. Adventitious roots are found in some cases |
| 6 | In stems, ground tissue is not differentiated into cortex and pith | In stems, ground tissue is differentiated into cortex, pitch, endodermis etc |
| 7 | Vascular bundles are scattered and closed. Cambium absent | Vascular bundles are arranged in a ring and open Cambium present |
| 8 |
In root, a pith is always present. Vascular bundles are many (more than 8) |
In root, pith is absent Vascular bundles are few |
| 9 | Vessels are rounded in outline | Vessels are polygonal in outline |
उत्तर २
Differences between monocots and dicots are as follows :
| Monocot | Dicot | |
| 1 | The seeds contain one cotyledon | The seeds contain two cotyledons |
| 2 | Flowers are generally trimerous | Flowers are generally pentamerous or tetramerous |
| 3 | Pollen grains generally possess a single germ pore | Pollen grains commonly have three germ pores |
| 4 | Leaves generallypossess parallel venation | Leaves posses reticluate venation |
| 5 | Primary root is short lived. Tap root is absent. Adventitious roots present | Primary root is long lived and it forms tap root. Adventitious roots are found in some cases |
| 6 | In stems, ground tissue is not differentiated into cortex and pith | In stems, ground tissue is differentiated into cortex, pitch, endodermis etc |
| 7 | Vascular bundles are scattered and closed. Cambium absent | Vascular bundles are arranged in a ring and open Cambium present |
| 8 |
In root, a pith is always present. Vascular bundles are many (more than 8) |
In root, pith is absent Vascular bundles are few |
| 9 | Vessels are rounded in outline | Vessels are polygonal in outline |
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