GCSE Biology – Thyroxine and adrenaline

Last updated: 29/04/2020
AQA GCSE Science – Combined science higher Homeostasis and response GCSE Biology – Thyroxine and adrenaline

Learning Objectives

-I can explain the role and regulation of thyroxine in the body
-I can explain the role and regulation of adrenaline in the body

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  1. Current
  2. Review
  3. Answered

  1. What type of substance is thyroxine?

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  2. What produces thyroxine in the body?

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  3. Where is the thyroid gland?

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  4. What does thyroxine play an important role in?

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  5. What does the thyroid gland use to produce thyroxine?

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  6. What does thyroxine control?

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  7. How are thyroxine levels controlled?

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  8. What type of process is negative feedback?

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  9. What detects changes in thyroxine levels in the body?

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  10. What happens if thyroxine levels decrease?

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  11. What happens if thyroxine levels increase?

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  12. If thyroxine levels have increased, what does the pituitary gland do?

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  13. What is the thyroxine control loop called?

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  14. What does TSH stand for?

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  15. What does an increase in TSH cause?

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  16. What does a decrease in TSH cause?

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  17. What type of substance is ADH?

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  18. What type of substance is adrenaline?

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  19. What produces adrenaline in the body?

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  20. When is adrenaline produced?

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  21. What does adrenaline do?

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  22. What does adrenaline increase the delivery of to the brain?

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  23. How are levels of adrenaline controlled?

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  24. Are adrenaline levels controlled by negative feedback?

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  25. What is the name of the response caused by adrenaline?

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