- Created by: Gregory B
- Created on: 13-06-18 20:25
A hormone is a chemical messenger.
Why do plants grow towards to light?
Auxin - Is a plant hormone that controls growth near the tips of shoots and roots. It controls the growth of a plant in response to different stimuli (A stimuli is a change in the environment of an organism).
- Photoropism - plant growth in response to light.
- Gravitorpism (Also known as geotorpism) - plant growth in response to gravity.
What do hormones in plants control?
- Roots and Shoots
- Seed Germination
- Leaf fall
- Disease Resistance
- Fruit Formation and Ripening
- Flowering Time
- Bud formation
Sensivity; Responding to the Environment:
Plants respond to stimuli to:
- Avoid stress
- Avoid being eaten
- Enhance survival
- Improve chances of…