PLANT PHYSIOLOGY
PLANT MOVEMENT
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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folding of leaves
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germination
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hydrotropism
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Both A and B
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Detailed explanation-1: -The folding up of leaves of a sensitive plant (Mimosa pudica) on touching is an example of plant movement caused due to the sudden loss of water from the pad-like swelling called “pulvini” which is present at the base of the leaves.
Detailed explanation-2: -Example of movement in plants: A sunflower turns its face towards the sun due to phototropism.
Detailed explanation-3: -Complete answer. Thigmotropism. Phototropism. The movement of leaves of the sensitive plant is a nastic movement called thigmotropism.
Detailed explanation-4: -The folding up of leaves belonging to a sensitive plant such as Mimosa pudica is an example of nastic movement. The stimulus for this movement is “touch”. Hence this movement is also called thigmonasty.
Detailed explanation-5: -When a plant exhibits some growth movement in response to a stimulus, it is referred to as tropism. Tropism is specific to the direction of the stimulus. Plants can either display a negative or positive movement in response to a stimulus.