Lesson Starter What is homeostasis? Which part of the brain regulates body temperature? What is our body’s response to being too warm? What is our body’s response to being too cold?

Maintaining stable body conditions

Maintaining Glucose levels Energy Constant level Too much or too little causes problems

Hormones control glucose levels Levels rise and fall Pancreas Insulin= GLUCOSE  GLYCOGEN Glucagon = GLYCOGEN  GLUCOSE

Note: to copy Blood glucose levels rise after eating a meal The pancreas monitors the level of blood glucose. Excess blood glucose causes the pancreas to produce the hormone INSULIN. Insulin converts excess glucose to glycogen which is then stored in the liver. If glucose levels are too low then GLUCAGON is released to convert the glycogen back to glucose.

Diabetes Millions affected Can’t control excess glucose Symptoms No cure Treatment Regular blood glucose checks

Type 1 diabetes 10% of cases Juvenile onset Autoimmune disorder NO insulin produced Insulin injection dependant

Type 2 diabetes 90% of cases Usually diagnosed >30 Overweight Insulin produced Diet and Tablets

Note: to copy A person is said to have diabetes when the body can’t control excess glucose with insulin. Blood glucose levels can become dangerously HIGH. In Type 1 diabetes, the pancreas is unable to make enough insulin. The sufferer relies on insulin injections to maintain glucose levels In Type 2 diabetes, the pancreas still makes insulin but the insulin doesn’t work very well. Associated with excess body weight and is controlled by diet and tablets.

https://www.youtube.com/watch?v=rPLjSY00JlE