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Distinguish between tropic movements and nastic movements in plants. Give examples to illustrate your answer.
| Tropic movements | Nastic movements |
| 1. These are directional movements of plants in response to the stimulus. | 1. These are non-directional movements of plants in response to the stimulus. |
| 2. These movements are slow. | 2. These movements are fast. |
| 3. These movements are exhibited by all parts of a plant. | 3. These movements are exhibited by the flat organs (like leaves and petals of flowers) of a plant. |
4. Example, the upward growth of a shoot in response to sunlight and the downward growth of a plant’s root in response to gravity. | 4. Example, the bending and drooping of leaves in response to touch in ‘Touch-me-not’ plant. |
Updated on: 24-Mar-2023
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