1. 1. Geotropism 3. Thigmotropism 2. Hydrotropism 4. Phototropism
Using the information provided write a definition for the following words and think of an example for each:
1. Geotropism 3. Thigmotropism
2. Hydrotropism 4. Phototropism
Tropism-
Latin Roots
“geo”= Earth
“hydro” = water
“thigmo”= touch
“photo”= light
the turning of a plant in response to a stimulus, either towards or away from the stimulus
Once you have completed your definitions, pick up a Tropisms half sheet. Check your definitions and complete the questions in your notebook.

2. On the left side:
Explain the similarities and differences between plants responding to hormones and plant tropisms.