Why do plants bend towards the light?

Have you ever wondered why the money plant in your house turns more towards the light source? It is a type of tropic movement observed in plants. Tropic movements are the movements of plants in response to environmental stimuli. The phenomenon of growing towards light is called phototropism.


Tropic movements of plants differ from the nastic movements of plants. In tropic movements, growth occurs towards the stimuli, however, in nastic movements, the plant moves away from the stimuli. Hormones are responsible for tropic movements, whereas nastic movements are due to turgor pressure.