Nastic movements are different from tropic movements (tropisms). Tropisms are directional movements or growth response of a plant to the stimulus. In nastic movements, the response of the plant is non-directional. An example of tropism is thigmotropism, which is a growth response to the touch stimulus.

How do plant tropisms differ from nastic movements?

The growth of plants is independent of the direction of stimuli. ... In plants, tropism movement is caused by cell division but the nastic movement is caused by the turgor pressure in cells. Tropism movement is a directional movement while nastic movement is a non-directional movement in plants.

What is the difference between Nastic responses and tropisms?

Tropisms movment and nastic movements are both plants in response to external stimuli, but tropisms areelyrelying on the path of the stimulus nastic movements do not rely on the path of a stimulus.