DENDROLOGY AND SOCIETY
PLANT CLASSIFICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A plant near a window grows toward the light. This is an example of which tropism?
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Hydrotropism
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Phototropism
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Gravitropism
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Thigmotropism
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Explanation:
Detailed explanation-1: -One important light response in plants is phototropism, which involves growth toward-or away from-a light source. Positive phototropism is growth towards a light source; negative phototropism is growth away from light.
Detailed explanation-2: -An example of phototropism would be the movement of sunflowers in response to sunlight. The sunflower stem, which moves towards the direction of the sunlight, exhibits positive phototropism.
Detailed explanation-3: -An example of a plant that is highly phototrophic is the sunflower (Helianthus annus). Not only do sunflowers grow toward the sun, they can be visibly seen to track the sun’s movements from East to West throughout the day.
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