Glucose Transporters

Question 1

GLUT-1

Answer 1

Insulin-independent transporters

RBCs, brain, cornea, placenta

BRICK L (insulin-independent glucose uptake): Brain, RBCs, Intestine, Cornea, Kidney, Liver.

Question 2

GLUT-2

Answer 2

Insulin-independent transporters

(bidirectional)

β islet cells, liver, kidney, small intestine

BRICK L (insulin-independent glucose uptake): Brain, RBCs, Intestine, Cornea, Kidney, Liver.

Question 3

GLUT-3

Answer 3

Insulin-independent transporters

brain, placenta

BRICK L (insulin-independent glucose uptake): Brain, RBCs, Intestine, Cornea, Kidney, Liver.

Question 4

GLUT-4

Answer 4

Insulin-dependent glucose transporters

adipose tissue, striated muscle

(exercise can also increase GLUT-4 expression)

Question 5

GLUT-5

Answer 5

Insulin-independent transporters

(fructose)

spermatocytes, GI tract

BRICK L (insulin-independent glucose uptake): Brain, RBCs, Intestine, Cornea, Kidney, Liver.