Question

What are nastic and curvature movements

Answer 1

hii ,

Movement of the plants in response to am external stimulus is called nastic movement. The plant may grow towards or away from the stimulus. It is caused by differential turgor pressure or hormone build up in the plant parts exposed to the stimulus. Eg..Opening and closing of stomata.

Curvature movements is movement of plant parts in or other direction. Eg..Release of spores from sporangia.

hope it helps !! :)

Answer 2

Bastian movements is in which movements these are non-directional movements which are neither towards nor away from the stimulus. curvature movements is in such movements the plant organs move towards or away from the stimulus.