Negative Feedback (AQA GCSE Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is negative feedback?
What is negative feedback?
When the body returns a factor to its original level
What does thyroxine regulate in the body?
What does thyroxine regulate in the body?
Metabolic rate
Which gland releases thyroxine?
Which gland releases thyroxine?
Thyroid gland
What stimulates the release of thyroxine?
What stimulates the release of thyroxine?
Thyroid stimulating hormone
Where are increased thyroxine levels detected?
Where are increased thyroxine levels detected?
Receptors in the brain
What happens to TSH when thyroxine levels increase?
What happens to TSH when thyroxine levels increase?
TSH release is inhibited
What response does adrenaline stimulate?
What response does adrenaline stimulate?
Fight or flight response
Which glands release adrenaline?
Which glands release adrenaline?
Adrenal glands
What stimulates adrenaline release?
What stimulates adrenaline release?
Fear or stress
How does adrenaline affect heart and breathing rate?
How does adrenaline affect heart and breathing rate?
Both increase
What happens to glycogen in the liver during adrenaline release?
What happens to glycogen in the liver during adrenaline release?
Converted to glucose
How does adrenaline affect the pupils?
How does adrenaline affect the pupils?
Pupils dilate