Negative Feedback (AQA GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is negative feedback?
What is negative feedback?
Body returns factor to original level
What does thyroxine regulate?
What does thyroxine regulate?
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 (TSH)
What detects increased thyroxine levels?
What detects increased thyroxine levels?
Receptors in the brain
What happens to TSH when thyroxine levels increase?
What happens to TSH when thyroxine levels increase?
TSH release is inhibited
Which gland releases adrenaline?
Which gland releases adrenaline?
Adrenal glands
What triggers the release of adrenaline?
What triggers the release of adrenaline?
Fear or stress
What effect does adrenaline have on heart rate?
What effect does adrenaline have on heart rate?
Increases heart rate
What happens to glycogen in the liver when adrenaline is released?
What happens to glycogen in the liver when adrenaline is released?
Converted to glucose