Growth Hormones in Plants Simulator
Plants do not have a
sophisticated responsive system, like the nervous system in animals. Therefore, they can't respond as quickly as animals. They react to stimuli much more
slowly. Their reactions are controlled by hormones called AUXINS.
Test your understanding of auxins, phototropism, and geotropism based on the webpage information. 1. What is the name of the chemical hormone that controls plant growth? 2. In a plant shoot, where do auxins tend to accumulate when light shines from one side? 3. What effect do auxins have on the cells in a plant shoot? 4. Geotropism is a plant's response to which stimulus? 5. How does a high concentration of auxin affect the growth of plant roots? 🔬 Knowledge Check: Plant Growth Hormones
Click to Reveal Answers
2. On the shaded side (Light causes auxins to move to the side away from the light).
3. Cause cells to elongate (This leads to unequal growth and bending).
4. Gravity (Also known as gravitropism).
5. Inhibits growth (Unlike in shoots, auxins slow down growth in root cells).