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Question

In a tissue, cells are bound together by physical attachment between cell to cell or between cell to the extracellular matrix. The following are some of the characteristics of cell junctions: A. Tight junctions are cell-cell junctions connecting the intermediate filament in one cell with that in the adjacent cell. B. Desmosomes are cell-matrix anchoring junctions connecting actin filament in one cell to the extracellular matrix. C. Gap junctions are channel-formingjunctions allowing the passage of small water-soluble molecules ±rom cell to cell. D. Tight junctions are occluding junctions that seal the gap between two cells. E. Hemidesmosomes are cell-matrix anchoring junctions connecting intermediate filaments in one cell to the extracellular matrix. Which one of the following options represents the combination of ALL INCORRECT statements?

Options

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Explanation

In in a tissue, cells are bound together, A and B represents established outcome. functional assays confirms option A (A and B) as correct, while alternatives misstate substrate or regulatory direction, contradicting textbook data.

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