10. How would you distinguish monocots from dicots?
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Answers
- Monocots differ from dicots in four distinct structural features: leaves, stems, roots and flowers. But, the differences start from the very beginning of the plant's life cycle: the seed. Within the seed lies the plant's embryo. Whereas monocots have one cotyledon (vein), dicots have two.
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Monocots :-
1. The seeds of these plants have only one cotyledon.
2. Their leaves have parallel venation.
3. The root system consists of similar fibrous roots.
4. The flowers are trimerous, have three or multiple of three petals.
5. The vascular bundles are scattered and closed (lack canbium). Secondary growth does not occur.
Examples - Maize, wheat,rice,onion
Dicots :
1. The seeds produced by these plants have embryos with two fleshy leaves, the cotyledons.
2. Their leaves have reticulate venation, with a network of veins.
3. The root system has a prominent tap root.
4. The flowers have five or multiple of five petals.
5. The vascular bundles are arranged in a ring. They are open (I.e., have cambium) and undergo secondary growth.
Examples - Pea, potato, sunflower, rose, banyan.