Control Of The Blood Glucose Concentration Flashcards
What is glucose used for
Release energy by respiration
What is The blood glucose concentration monitored bye
The pancreas
What does the pancreas release if the glucose concentration increases
Insulin
How does insulin work
Insulin travels in the bloodstream all around the body. It triggers body cells to take up glucose from the blood. Insulin triggers liver and muscle cells to store excess glucose as glycogen 
What is it called when people can’t control blood glucose levels
Diabetes
What is type 1 Diabetes
The pancreas does not produce enough insulin
What can people with type 1 diabetes do
Inject with insulin after a carbohydrate rich meal
What is type 2 diabetes
The body cells stop responding to the insulin
How is type 2 diabetes controlled
Control level of carbohydrates eaten
Exercise
What is a risk factor for type 2 diabetes
Obesity
If the blood glucose Concentration is too low what does the pancreas release
Glucagon
How does glucagon work
Triggers liver cells to convert glycogen back into glucose and release glucose into blood
What is blood glucose concentration an example of
Negative feedback
Why is it an example of negative feedback
Insulin and glucagon have opposite effects
Explain how blood glucose levels are controlled in the body of someone who does not have diabetes ( 4 marks )
If too high insulin released from the pancreas so glucose is moved into cells
If low glucagon is released from pancreas which causes glycogen to be converted to glucose and then released into the blood
