PLANT PHYSIOLOGY
PLANT MOVEMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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photonasty
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thigmonasty
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Either A or B
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None of the above
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Detailed explanation-1: -(c) thigmotropism . The growth movement of a plant part in response to the touch of an object is called thigmotropism.
Detailed explanation-2: -The correct option is D. Thigmotropism. The movement of a plant due to touch is called thigmotropic movement (Thigmotropism).
Detailed explanation-3: -Thigmonastic responses include opening and closing leaves, petals, or other parts of the plant as a reaction to touch. Through thigmomorphogenesis, plants change their growth in response to repeated mechanical stress from wind, rain, or other living things.
Detailed explanation-4: -Thigmonasty or seismonasty is the nastic response of a plant or fungus to touch or vibration.
Detailed explanation-5: -An example of thigmotropism is the coiling of tendrils or twiners upon contact to objects for support. In thigmonasty, an example is the shutting of a venus fly trap. The drooping of leaflets of Mimosa pudica when touched is also a thigmonastic movement.