Glucose Transporters

Question 1

source

Answer 1

Harper 30th ed. p.191

Question 2

Brain, kidney, colon, placenta, erythrocytes

Answer 2

GLUT 1

Question 3

Liver, pancreatic β cell, small intestine, kidney

Answer 3

GLUT 2

Question 4

Brain, kidney, placenta

Answer 4

GLUT 1 and 3

Question 5

Heart and skeletal muscle, adipose tissue

Answer 5

GLUT 4

Question 6

GLUT 5

Answer 6

Small intestine

Question 7

Small intestine and kidney

Answer 7

SGLT 1

Question 8

Absorption of fructose

Answer 8

GLUT 5

Question 9

Insulin-stimulated glucose uptake

Answer 9

GLUT 4

Question 10

Active uptake of glucose against a concentration gradient

Answer 10

SGLT 1

Question 11

Rapid uptake or release of glucose

Answer 11

GLUT 2

Question 12

the rate-limiting step in the utilization of glucose in extrahepatic tissues

Answer 12

uptake from the bloodstream

Question 13

___ cells are freely permeable to glucose in either

direction (via the GLUT 2 transporter)

Answer 13

Liver.

Cells of extrahepatic tissues (apart from pancreatic β-islets) are relatively impermeable, and their unidirectional glucose transporters are regulated by insulin.

Question 14

The β-islet cells are freely permeable

to glucose via what glucose transporter?

Answer 14

GLUT 2

Question 15

Glucose transporter with dual function (uptake and release)

Answer 15

GLUT 2