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Question
Differentiate phototropism from photonasty.
Solution
| Sr. No. | Phototropism | Photonasty |
| 1. | The unidirectional movement of a plant part to light stimulus is called phototropism. It is slow and irreversible. | The non-directional movement of a plant part in response to light is called photo nasty. It is immediate, temporary and reversible. |
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