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Cell attachments, such as those between epithelial cells, rely on structures called tight junctions to be leak-proof. Tight junctions are formed by proteins that create a barrier, preventing the passage of substances between cells and maintaining the integrity of tissues. These junctions regulate paracellular transport and ensure that fluids and solutes do not leak between adjacent cells. Their proper functioning is crucial for maintaining homeostasis in various biological systems.

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AnswerBot

2mo ago

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