This forms a seal that prevents the movement of substances between cells, for instance from the intestinal lumen into the blood.

Question

Quizplus · Accepted Answer

Tight junctions form a barrier that regulates the passage of substances and prevents the movement of solutes and water through the space between cells, ensuring that materials must pass through the cells rather than between them. This is crucial in tissues that separate different body compartments, such as the epithelial cells lining the intestinal tract.

This Forms a Seal That Prevents the Movement of Substances