B11.2 - Controlling blood glucose levels

Question 1

What happens when blood glucose levels are TOO HIGH

Answer 1

1) insulin secreted by pancreas
2) glucose moves from blood into liver and muscle cells
3) insulin makes liver turn glucose into glycogen
4) blood glucose levels reduced

Question 2

What happens when blood glucose levels are TOO LOW

Answer 2

1) glucagon is secreted by the pancreas
2) glucagon makes liver turn glycogen into glucose
3) glucose released into blood by liver
4) blood glucose levels increase

Question 3

Why is this a negative feedback system?

Answer 3

pancreas can adjust using two hormones which are insulin and glucagon

Question 4

What is type 1 diabetes?

Answer 4

pancreas produces little or no insulin so blood glucose levels can rise to death
- insulin therapy

Question 5

What is type 2 diabetes? (more common)

Answer 5

body becomes resistant to their own insulin

• eating a carbohydrate controlled diet
• regular exercise