Question

Differentiate between tropic and nastic movements.

Answer 1

Tropic Movements

These are a type of plant movement that responds to a directional stimulus. It may be towards or away from the stimulus.

Nastic Movements

These are a type of plant movement that responds to non-directional stimulus.

Tropic Movements	Nastic Movements
These movements respond to directional stimuli.	These movements respond to non-directional stimuli.
These movements are caused due to unidirectional growth.	These movements are caused due to turgor changes.