Many amino acids in our diet are absorbed via the transcellular transport pathway by the intestinal epithelial

Many amino acids in our diet are absorbed via the transcellular transport pathway by the intestinal epithelial

cells.

This process requires ATP hydrolysis by ...

a) the Na+-amino acid symporter in the apical domain of the plasma membrane.

b) the Na+-amino acid antiporter in the apical domain of the plasma membrane.

c) the Na+-K+ pumps in the basolateral plasma membrane.

d) an amino acid carrier in the basal domain of the plasma membrane.

e) F-type ATPases in the apical domain of the plasma membrane.