(I)GCSE Topic 2.79 Plants Respond to Stimuli

-Stimuli = changes in the environment e.g. temperature changes, light changes.

-Plants have receptors which can detect these stimulis. The response to this is often growth of the plants.

-Growth in response to Stimulis is called Tropism. Tropism involving light is called Phototropism. Tropism involving gravity is called Geotropism.

-Connection between Receptor and Response usually take the form of plants hormones.