Uses of plant hormones

• What should you be able to describe by the end of the video?

  Uses of plant hormones
• What are the two types of tropism mentioned in the video?

  Phototropism and gravitropism
• Which plant hormone is important for initiating seed germination?

  Gibberellins
• What does the chemical ethylene control in plants?

  Cell division and ripening of food
• What are the main uses of auxins in agriculture and horticulture?

  • Weed killers in gardens
  • Rooting powders for cuttings
  • Promoting growth in tissue culture
• How do gibberellins affect flowering in plants?

  They encourage plants to flower
• How can gibberellins be used to affect food size?

  They can make food grow larger
• What is one use of gibberellins in agriculture?

  To end seed dormancy
• What is a common use of ethylene in the food industry?

  To trigger ripening of bananas
• Why are bananas harvested before they ripen?

  To transport them long distances
• What happens to bananas just before they are sold in the UK?

  Ethylene triggers them to ripen
• Where can students find questions on plant hormones?

  • In the vision workbook
  • Available via a link in the video