To come up with an appropriate research investigation about Tropism (Phototropism or Geotropism) you irst need to do some background resrearch and braistorming of ideas. There are a range of possible experiments that can be carried out. You need to ensure that you are testing a simple idea so that it can be investigated in a 3 week time frame. The Plant Hormone PowerPoint and Chapter 14 in Heinemann will give you some background information on plant hormones. The website Plants in motion may also help you with background information and ideas.
Some possible ideas for the experiment are
• Investigate the phototropic response of wheat seedlings to light from one side.
• Investigate the phototropic response of wheat seedlings to blue light from one side.
• Investigate the phototropic response of wheat seedlings to red light from one side.
• Investigate whether the tip of a wheat seedling acts as the receptor to the stimulus of light.
• Demonstrate phototropic and geotropic responses in a germinating seed.
• Investigate the effect of ethylene released from a ripe banana on fruit or flowers.
• Investigate how seeds germinate when in light compared to being in complete darkness
Use webspiration to create a group account and start putting your ideas in place. This is just a collaborative brainstorming space.The Class ID is stcolumbas and then enter using your username and password. Please invite your teacher to the group.
See Page 7 of Biozone for more infromation about the scientific method. BACK
To come up with an appropriate research investigation about Tropism (Phototropism or Geotropism) you irst need to do some background resrearch and braistorming of ideas. There are a range of possible experiments that can be carried out. You need to ensure that you are testing a simple idea so that it can be investigated in a 3 week time frame. The Plant Hormone PowerPoint and Chapter 14 in Heinemann will give you some background information on plant hormones. The website Plants in motion may also help you with background information and ideas.
Some possible ideas for the experiment are
Use webspiration to create a group account and start putting your ideas in place. This is just a collaborative brainstorming space.The Class ID is stcolumbas and then enter using your username and password. Please invite your teacher to the group.
See Page 7 of Biozone for more infromation about the scientific method.
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