PLANT PHYSIOLOGY
PLANT MOVEMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nastic movements
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tropic movement
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Both
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None
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Detailed explanation-1: -Final Answer: Therefore, the movement of a sunflower according to the path of the sun is due to phototropism.
Detailed explanation-2: -Sunflowers display heliotropic movement even on cloudy days, suggesting that there is a learned diurnal rhythm that is followed in the absence of a strong directional light. Leaves and floral parts both exhibit heliotropism. Floral heliotropism is controlled by motor cells located just below the flower head.
Detailed explanation-3: -Sunflower grow in accordance to sun is an example of positive phototropism.
Detailed explanation-4: -A tropism is a directional growth or movement response of an organism, in this case a plant, either toward or away from a stimulus. In this example, the stimulus is sunlight and the response is for the sunflower to grow toward the light.