AQA GCSE Homeostasis-Questions with Correct Answers|Verified

AQA GCSE Homeostasis-Questions with Correct Answers|Verified
Homeostasis - ✔✔The regulation of internal conditions to maintain optimum conditions in
response to changes



Stimulus - ✔✔A change in the environment



Receptors - ✔✔Cells that detect changes in the environment



Coordination centres - ✔✔Receive and process information from receptors. E.g. brain



Effectors - ✔✔Muscles or glands which bring about a response



Reflex action - ✔✔An automatic and rapid action



Endocrine system - ✔✔Consists of glands that release hormones into the blood to get to a
target organ to cause a response



Insulin - ✔✔Released from the pancreas in response to high blood glucose levels and causes
glucose to move from the blood into the cells. It causes glucose to be converted into
glycogen for storage in the liver



Glucagon - ✔✔Released from the pancreas in response to low blood glucose levels and
causes glycogen to be broken down into glucose and released back into the blood



Type 1 diabetes - ✔✔When the pancreas does not produce enough insulin



Type 2 diabetes - ✔✔When the body cells no longer respond to insulin



Oestrogen - ✔✔Released by the ovaries. Stops FSH being released and stimulates LH to be
released