When you step out in bright sunlight, you partly close your eyes to keep away the bright light. You may start sweating as the temperature rises. These are coordinated responses to stimuli. In animals the responses are quicker than in plants.
Movements in plants:
Types of trophic movements (tropism)
You know that growth in humans is controlled by hormones, similarly it is also controlled in plants by plant hormones.
Plant hormones are auxins (promoteds cell elongation ), gibberellins (promotes growth), cytokinins (promotes cell division), abscisic acid (inhibits growth).
A SmartTest on Movement in Plants
A SmartTest on Plant Harmones