Question

Mimosa pudica shows seismonastic movements.

• A. True
• B. False

Answer 1

The correct option is A True

Semimonastic movement is the movement caused in response to touch or vibrations. The stimulus from the largely stimulated leaflets travels to other leaflets and their swollen base known as pulvinus. It further activates the leaf rachis and then runs through petiole and finally to the large pulvinus at the end of the petiole, where the leaf attaches to the stem. The potassium ions flows out from the vacuoles of cells in the various pulvini. This allows exit of water from various cells due to loss in turgidity the leaflet closes and the petiole collapses. So, the given statement is true.