AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
A tropic movement is a directional growth movement in plants in response to an external stimulus, either towards or away from it.
Example: Shoot bending towards light (phototropism).
Source: Chapter 6, Section 6.2.2 – Movement Due to Growth
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The examiner looks for two things in this 1-mark answer: (1) the definition mentioning directional growth in response to a stimulus, and (2) one named example. Writing just "movement towards light" without the word growth may cost you the mark. "Phototropism" alone as an example is acceptable; you can also write "geotropism" (roots growing downward in response to gravity).