Researchers are investigating the specifics underlying glucose transport across adipose cell membranes. One of their experiments shows that, in the presence of insulin, D-glucose transport across the plasma membrane of adipocytes is much faster than L-glucose transport. Which of the following transport processes best describes the mechanism for glucose entry into these cells?

Question

Researchers are investigating the specifics underlying glucose transport across adipose cell membranes.  One of their experiments shows that, in the presence of insulin, D-glucose transport across the plasma membrane of adipocytes is much faster than L-glucose transport.  Which of the following transport processes best describes the mechanism for glucose entry into these cells?

Quizplus · Accepted Answer

Eductional Objective: Transport of glucose into the cells of most tissues occurs by means of facilitated diffusion.  Glucose moves from areas of high concentration to areas of low concentration with the help of transmembrane glucose transporter proteins (GLUT).  These carrier proteins are stereoselective and have preference for D-glucose.

Researchers Are Investigating the Specifics Underlying Glucose Transport Across Adipose