Glucose enters the epithelial cells of the small intestine against its concentration gradient. Select the BEST explanation from the following.
Glucose is transported through a glucose pump in the apical membrane that hydrolyzes ATP to ADP and Pi.
Glucose is co-transported in the Na+/K+ pump.
Glucose is co-transported with Na+, which moves down its concentration gradient into the cell.
Glucose follows the water that is pumped into the cell.
Glucose enters by diffusion.
Glucose is co-transported with Na+, which moves down its concentration gradient into the cell.