which epithelial cell junctions serve to seal neighboring cells together so that water-soluble molecules cannot easily leak between them?

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20-12-2022
Biology

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which epithelial cell junctions serve to seal neighboring cells together so that water-soluble molecules cannot easily leak between them?

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kumarravichandra kumarravichandra · Answer 1 · 2022-12-25T01:45:06-05:00

Tight junctions create the continuous intercellular barrier between epithelial cells that is necessary to demarcate tissue compartments and control the selective transport of solutes across the epithelium.

In an epithelium, occlusive junctions hold cells together in a way that prevents even small molecules from leaking from one side of the sheet to the other. The upper portion of the lateral surfaces of the neighboring epithelial cells are circumferentially surrounded by tight junctions, which act as fusion points. They have a role in preserving cellular polarity and creating compositionally separate fluid compartments throughout the body. Tight junctions are the junctions, seals, or joints between two cells in the epithelial membrane. Simply said, these are Tight junctions cell junctions that stop leakage.

Learn more about Tight junctions here:

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