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Plant interaction

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  • What is another name for plant hormones?
    Phytohormones
  • What type of movements are slow and irreversable?
    Tropisms
  • What substance controls plant activities?
    Plant hormones (or phytohormones)
  • Name 3 main plant responses
    1)Nastic movements 2)tropisms 3)seasonal changes
  • What plant response is slow and irreversible?
    Tropism
  • What factors cause plants to make seasonal changes?
    Changes in temperature, changes in light, changes in the length of the day or night
  • A tree dropping leaves in autumn is an example of which plant response?
    Seasonal changes
  • What type of plant response is this example: A flower opening in the daytime and closing at nighttime  A) Nastic movement B) Tropism C) Seasonal Change
    Nastic movements
  • What plant response is fast?
    Nastic movement
  • Flowering in the spring is an example of what type of plant response?
    Seasonal changes
  • Roots growing away from the sun is.... tropism
    Negative
  • An example of positive tropism is...
    Stems growing towards the light
  • What type of movements are temporary plant responses?
    Nastic movements
  • What are light and gravity examples of?
    Plant stimuli
  • What plant response is irreversible?
    Tropism
  • How does the plant know the season has changed?
    The change in duration of day / night
  • Tropisms can be positive and .....?
    Negative
  • What type of plant response is this example: a sunflower following the sun?   A) Nastic movement B) Tropism C) Seasonal Change
    Nastic movements
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