PLANT PHYSIOLOGY
PLANT MOVEMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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pulling the root downwards
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pulling the roots upward
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growth of the stem vertically upwards
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growth of the stem horizontally
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Detailed explanation-1: -The curling of tendrils is a growth movement induced due to contact or touch. Such a movement is called thigmotropic movement. When the tip of the tendril comes in contact with an uneven surface, it coils around the support.
Detailed explanation-2: -The upward movement of water in a plant towards the stem and leaves is called ascent of sap.
Detailed explanation-3: -tendril, in botany, plant organ specialized to anchor and support vining stems. Tendrils may be modified leaves, leaflets, leaf tips, or leaf stipules; they may, however, be derived as modified stem branches (e.g., grapes).
Detailed explanation-4: -thigmotropic movement. The movement of plants in response to the stimulus of touch is called thigmotropic movement. This type of movement is commonly observed in tendrils and ‘touch-me-not plants’.