Which among the following glucose transporter present in beta cells ?
a) GLUT1
b) GLUT2
c) GLUT3
d) GLUT4
Correct Answer - B
GLUT2 is the glucose transporter present in the betacells and
liver cells.It has a high Km for glucose.Hence entry of glucose is
directly proportional to the glucose level.It is an insul;in independent
transport.
GLUT3 is present in brain and GLUT4 medites insulin dependent
transport of glucose into muscle and adipose tissue.
Ref: Murray R.K., Granner D.K. (2011). Chapter 40. Membranes:
Structure & Function. In D.A. Bender, K.M. Botham, P.A. Weil, P.J.
Kennelly, R.K. Murray, V.W. Rodwell (Eds), Harper’s Illustrated
Biochemistry, 29e