Homeostasis and Response Exam Questions
Questions on the nervous system, reflexes, the brain, the eye, body temperature control, hormones, blood glucose regulation, diabetes, kidneys, and plant hormones. Download free past paper questions organised by topic with mark schemes.
Frequently Asked Questions
What is homeostasis GCSE Biology definition?
Homeostasis is the regulation of internal conditions to maintain optimum conditions for enzyme action and cell function, in response to internal and external changes.
What is the reflex arc GCSE Biology?
The reflex arc is: Stimulus → Receptor → Sensory neurone → Relay neurone (in spinal cord) → Motor neurone → Effector → Response. This is a very common exam question!
How does the body control blood glucose levels?
When blood glucose is HIGH: pancreas releases insulin → liver converts glucose to glycogen. When blood glucose is LOW: pancreas releases glucagon → liver converts glycogen back to glucose.
What hormones do I need to know for GCSE Biology?
Key hormones: Insulin and Glucagon (blood glucose), Adrenaline (fight or flight), FSH, LH, Oestrogen (menstrual cycle), Testosterone, Thyroxine, and plant hormones auxin, ethene, gibberellins.
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