Tropism

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  • Created by: mitchell
  • Created on: 07-02-13 07:52
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  • Tropism
    • 4)   Geotropism- Roots grow towards the pull of gravity
    • 2) Thigmotropism-shoots of climbing plants e.g. ivy wind round other plants for support
    • 3) Phototropism- shoots grow towards the light enabling photosynthesis
    • 1) Chemotropism-Pollen tubes are attracted by chemicals and so move down the style towards the ovary where fertilisation takes place
    • Plants respond to biotic (living) and abiotic (non living components in their environment. This can help the plant avoid stress, being eaten and so is able to reproduce.

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