05-01-2008, 05:40 AM
n in vitro system designed to study glucose transport in intestinal cells, a synthetic lipid bilayer membrane containing a specific glucose transporter is suspended between two aqueous
compartments, called X and Y. If the glucose concentrations in X and Y are equal, but a positive membrane potential is established in compartment X, net glucose transport occurs from compartment X into compartment Y. Which of the following glucose transporters best explains these results, and
which compartment corresponds to the inside of the cell?
A. A glucose uniport, with compartment X corresponding to the inside of the cell.
B. A glucose uniport, with compartment Y corresponding to the inside of the cell.
C. A sodium-glucose symport, with compartment X corresponding to the inside of the cell.
D. A sodium-glucose symport, with compartment Y corresponding to the inside of the cell.
E. A voltage-gated glucose channel, with compartment Y corresponding to the inside of the cell.
PLS ANSWER WITH EXPLAINATION. THANKS
compartments, called X and Y. If the glucose concentrations in X and Y are equal, but a positive membrane potential is established in compartment X, net glucose transport occurs from compartment X into compartment Y. Which of the following glucose transporters best explains these results, and
which compartment corresponds to the inside of the cell?
A. A glucose uniport, with compartment X corresponding to the inside of the cell.
B. A glucose uniport, with compartment Y corresponding to the inside of the cell.
C. A sodium-glucose symport, with compartment X corresponding to the inside of the cell.
D. A sodium-glucose symport, with compartment Y corresponding to the inside of the cell.
E. A voltage-gated glucose channel, with compartment Y corresponding to the inside of the cell.
PLS ANSWER WITH EXPLAINATION. THANKS