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Biology: The Unity and Diversity o...
Biology: The Unity and Diversity o...
The oat coleoptiles on the left have been modified: either cut or placed in a light-blocking tube. Which ones will still bend toward a directional light source?
To explain: Out of the four oat coleoptiles, there is one with a cut at the tip, one’s tip placed inside a light blocking tube, one with its bottom part inside a light blocking tube and one with a vertical cut from its tip, therefore which ones will still bend towards a directional light source.
Concept introduction: Phototropism is directional growth of plants towards a light stimulus. Phototropins are the blue-light receptors that control the photosynthetic efficacy of plants located at the shoot tips that help the plants in this regard. Light source is very necessary for a plant body to carry out many of its major functions.
Chapter 30 Solutions
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