1. Plant Responses and Adaptations1

2. TROPHISMS TROPHISM PHOTOTROPHISM GRAVITROPHISM THIGMOTROPHISM
Definition
picture

3. Tropism a response of a plant to an environmental stimulus.
What is a Tropism?
Tropism
a response of a plant to an environmental stimulus.
“TRO-FIZZ-EM” 3

4. What is Phototrophism? “FO-TOE-TRO-FIZZ-EM”
A tendency of plants to grow toward a source of light. 4

5. What is GRAVITROPHISM? “GRAV-EE-TRO-FIZZ-EM”
A tendency of a plant to grow in a direction in response to the force of gravity. 5

6. What is Thigmotropism? “THIG-MO-TRO-FIZZ-EM”
The response of plants to touch. 6

7. Plant Adaptations

8. Aquatic Plants have tissues with large air filled spaces
oxygen diffuses through these tissues
have floating seeds that delay germination
grow quickly after germination
growing shoot extends above water surface
Water Lettuce
Water lily 8

9. Desert Plants
Have extensive roots, reduced leaves, and thick stems to help them survive.
Lechugilla
Cacti 9

10. Carnivorous Plants Live in bogs and wet or acidic places
Trap food using special leaves
Sundew
Pitcher Plants
Venus’ Flytrap