Final answer:
The glucose-Na+ symport in epithelial cells uses the electrochemical gradient of Na+ to draw glucose into the cell.
Step-by-step explanation:
True. The glucose-Na+ symport in epithelial cells uses the electrochemical gradient of Na+ to draw glucose into the cell. This symport mechanism involves the movement of both glucose and Na+ in the same direction across the cell membrane. Glucose, which is typically at a higher concentration inside the cell, is transported against its concentration gradient with the help of the electrochemical gradient of Na+.