Question

How does touch me not plant works?

Answer 1

Mimosa pudica (touch-me-not plant) is well known for its rapid plant movement.This is a form of a nastic movement.This phenomenon is known as thigmotropism; is a movement in which a plant moves or grows in response to touch or contact stimuli.

The opening and closing of the plants' leaflets and the entire leaf are controlled by fluid-filled sac-like structures found at the base of the compound leaf and each leaflet.The swollen base of the leaf stalk is called `pulvinus'. When the plant is touched, electrical signals are flashed by the cells. The cells in the `pulvinus' respond to this signal by flushing out potassium and water. With the massive loss of water, the pulvinus bends over and the leaflets fold.