What is demonstrated when a plant grows towards a window?
Understand the Problem
The question is asking what phenomenon is illustrated when a plant exhibits growth towards a window, seeking to identify the correct scientific principle related to this behavior.
Answer
Positive phototropism.
The phenomenon where a plant grows towards a window is called positive phototropism.
Answer for screen readers
The phenomenon where a plant grows towards a window is called positive phototropism.
More Information
Phototropism is a plant's growth response to light stimulus. The plant hormones called auxins cause the cells on the darker side of the plant to elongate, making the plant bend towards the light.
Tips
A common mistake is confusing phototropism with photoperiodism. Phototropism refers specifically to growth in response to light direction, while photoperiodism is a response to the duration of light and dark periods.
Sources
- Phototropism - Master Gardeners of Northern Virginia - mgnv.org
- Phototropism and photoperiodism - Khan Academy - khanacademy.org
- Plant Tropic Responses - Plants In Motion - plantsinmotion.bio.indiana.edu
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