topic 6-7 recap

Question 1

Where is glucagon produced?

Answer 1

the pancreas

Question 2

What is the function of insulin?

Answer 2

To increase uptake of glucose by the liver and muscle

decrease circulation in blood

Question 3

What is the function of glucagon?

Answer 3

To increase the release of glucose from the liver

Question 4

Movement of glucose through a cell membrane

Answer 4

Glucose requires a transport protein to move through a membrane

Question 5

What organ is most responsible for regulating blood glucose levels?

Answer 5

Liver

Question 6

How does insulin act on muscle cells?

Answer 6

Increases the number of GLUT4 channels in the membrane

Question 7

Why does the liver have different glucose membrane transporters to muscle cells?

Answer 7

Because the liver needs to release and uptake glucose, while muscles only need to uptake it

Question 8

The pancreatic islet cells can respond to changing blood glucose levels. What happens when blood glucose is low?

Answer 8

glucagon secretion is increased and insulin secretion is decreased

Question 9

glucose entry into muscle cells

Answer 9

diffusion through a GLUT4 transporter