Tight Junctions Are Cell- Cell Junctions Found Between Adjacent Cells

question 34

Multiple Choice

Tight junctions are cell- cell junctions found between adjacent cells of the epithelium that lines the small intestine. What is the function of these cellular junctions?

• A) to attach epithelial cells to a basement membrane
• B) to recognize pathogenic organisms present in the lumen of the small intestine
• C) to seal the epithelium and prevent movement of substances between cells
• D) to release digestive enzymes into the intestinal lumen

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