The plasma membranes of epithelial cells facing the lumen of hollow organs or tubes have the same transport proteins as the plasma membranes that face the interstitial fluid.

Question

Quizplus · Accepted Answer

Epithelial cells have different transport proteins on their apical (lumen-facing) and basolateral (interstitial fluid-facing) membranes to facilitate directional transport of substances.

The Plasma Membranes of Epithelial Cells Facing the Lumen of Hollow