Question

Observe the given picture. a) Identify this plant. What type of special movement is shown by this plant? b) What are the other movements seen in this plant?

Answer 1

Answer:

(a) The plant in the above figure is Mimosa pudica. When we touch the leaves of this plant the leaves fold up and droop down and this type of movement is known as seismonasty or thigmonasty.

(b) This plant shows nastic movement i.e. it is not a directional movement of the plant part with response to the stimulus. Whatever the direction of stimulus may be it affects all parts of plant equally. When we touch the leaves of this plant due to loss of turgor pressure its leaves droop down.