Question

What is the difference between thigmotropism and thigmonasty?

Answer 1

	Thigmotropism	Thigmonasty
1.	Thigmotropism is a directional growth movement of a plant part in response to touch.	Thigmonasty is a non-directional movement of a plant part in response to touch.
2.	The movement depends on the direction of the stimulus.	The movement does not depend on the direction of the stimulus.
3.	Example: Tendrils of a pea plant coil around a support.	Example: Leaves of Mimosa pudica fold when touched.