Plant Hormones

• Give two factors the seedlings compete for.

  Light

  Water
• Describe two improvements the students should make to their investigation.

  keep temperature the same

  use equal numbers of seedlings
• Suggest how the students measured the length of the curved seedling

  Use string and measure length of thread
• Why does storing bananas with other fruits cause the other fruits to ripen faster?

   

  Ethene is released from bananas
• Phototropism is a growth response by part of a plant to light. Name one other tropism and the stimulus

  Tropism-Geotropism

  Stimulus- gravity
• Explain how phototropism in a plant shoot helps the plant to survive.


  Leaves absorb more light so more photosynthesis meaning more glucose produced
• Suggest an advantage of soaking seeds in a gibberellin solution in cold climates.

  seeds germinate sooner so growing season is longer