Chapter 3, Problem 10RAC

Which of these statements concerning the symport of glucose into cells is true!
a. The sodium-potassium exchange pump moves Na+ into cells.
b. The concentration of Na+ outside cells is less than inside cells.
c. A carrier protein moves Na+ into cells and glucose out of cells.
d. The concentration of glucose can be greater inside cells than outside cells.
e. As Na+ are actively transported into the cell, glucose is carried along.