Tight junctions in epithelial cells

Question

Quizplus · Accepted Answer

Tight junctions are structures that prevent substances from passing between the apical and basolateral surfaces of the epithelial cell. They form a barrier that separates these two surfaces and help to maintain the polarity of the cell. Tight junctions do not permit lipid diffusion or facilitate the passage of substances between cells. They are also not located at the center of gap junctions, which are a different type of intercellular junction.

Tight Junctions in Epithelial Cells