Negative Feedback (OCR GCSE Biology A, Combined (Gateway Science Suite)): Flashcards
📚Flashcards
Practise the cards
13 cards from this deck
ShowHide
Practise the cards
13 cards from this deck
What is negative feedback?
What is negative feedback?
Body returns factor to original level after change
What does thyroxine regulate?
What does thyroxine regulate?
Metabolic rate
Metabolic rate definition
Metabolic rate definition
How quickly reactions occur
Other role of thyroxine
Other role of thyroxine
Growth and development
Gland releasing thyroxine
Gland releasing thyroxine
Thyroid gland
Stimulus for thyroxine release
Stimulus for thyroxine release
Thyroid stimulating hormone (TSH)
Control of thyroxine levels
Control of thyroxine levels
Negative feedback
What adrenaline stimulates
What adrenaline stimulates
'Fight or flight' response
Glands releasing adrenaline
Glands releasing adrenaline
Adrenal glands
Location of adrenal glands
Location of adrenal glands
On top of the kidneys
Stimulus for adrenaline release
Stimulus for adrenaline release
Fear or stress
Adrenaline effect: heart & breathing
Adrenaline effect: heart & breathing
Increased heart rate and breathing rate
Adrenaline effect: liver glycogen
Adrenaline effect: liver glycogen
Converted to glucose