GCSE Biology – Phototropism

Last updated: 02/07/2020

Learning Objectives

-I can define the term “phototropism”
-I can describe the role of plant hormones in regulating plant growth

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  1. Current
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  1. What are tropisms?

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  2. What is a positive tropism?

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  3. What is an example of a positive tropism?

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  4. What is a negative tropism?

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  5. What is an example of a negative tropism?

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  6. What is a hormone?

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  7. What hormone controls tropisms?

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  8. Where is auxin made in a plant?

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  9. What does auxin stimulate?

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  10. What does auxin do in stems?

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  11. How does auxin move to the stems?

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  12. What does auxin do in roots?

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  13. What does an uneven distribution of auxin cause?

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  14. What is the name for the tropism to light?

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  15. What is the response of shoots to light?

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  16. What is the response of roots to light?

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  17. What happens if sunlight is not directly above a plant?

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  18. What does more cell elongation on one side cause?

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