What Is the Main Function of Cellular Tight Junctions

question 3

Multiple Choice

What is the main function of cellular tight junctions?

• A) They resist forces that tend to pull cells apart.
• B) They form barriers that restrict the passage of materials through the extracellular space between cells.
• C) They are protein channels that allow the movement of ions between the cytosol of adjacent cells.
• D) They are spaces that allow movement of substances between the interior of the nucleus and the cytosol.
• E) They hold the genetic material in a tightly coiled conformation.

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