science
Grade-4-
Easy
Question
Which of the following is not a response to touch seen in plants?
- The touch-me-not plant closing its leaves
- The vines coiling around a branch
- The fruits getting damaged because of extreme cold
- The Venus fly-trap closing its flaps when an insect sits on it.
Hint:
Some plants are sensitive to touch or movement.
The correct answer is: The fruits getting damaged because of extreme cold
The correct option is c) The fruits getting damaged because of extreme cold.
Responses to touch turn plants into aggressors to animals, capable of catching and devouring them, making flowers vigorous by ensuring cross-pollination and shoots rising to sunlit heights.
Water in cell fluid freezes. When the water in the cell fluid freezes, it expands due to abnormal expansion. This swelling of cells due to freezing of water breaks down cell walls and damages fruits and vegetables.
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