2.79 Plants and Stimuli

Understand that plants respond to Stimuli
- Stimuli: Changes in the environment. Examples- temperature and light changes.
-The plant has receptors which can detect stimuli and turn them into response- they take the form of growth.
-Growth and response to stimulus is called a tropism.
-Tropism that involves light is called phototropism.
-Tropism that involves gravity is called geotropism.
-The connection between receptor and response usually takes the form of plant hormones (plant growth regulators) example- auxim.