3.3 Chemical Coordination in Plants
- Do you understand that plants respond to stimuli?
- Can you give an example of positive phototropism?
- How do plant roots and stems respond to gravity?
A time lapse capture of snow peas growing. A plant light was placed on one side of the pot and switched about every twelve hours. The experiment was to see if the seedlings grew toward the light.
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Click here to work through an animation and try a quiz on tropisms
Watch this video to see how you can conduct an experiment to investigate geotropism in seeds.