A2 OCR Biology - Plant hormones and their effects

Plant hormones and their effects

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Auxin

  • Promote cell elongation.
  • Inhibit growth of side shoots.
  • Inhibit abscission (leaf fall).
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Abscisic Acid

  • Inhibits seed germination and growth.
  • Causes stomatal closure when the plant is stressed by low water availability.
2 of 5

Cytokinins

  • Promote cell division.
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Giberellins

  • Promote seed germination and growth of stems.
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Ethene

  • Promotes fruit ripening
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Comments

Jordan

Like it ;)

Izzy

im pleased you do ;)

Jordan

Haha ;)

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