Which of the following would be most affected by a mutation that prevented cells from forming tight junctions?
A) attachment of cells to the surrounding matrix
B) direct flow of water and small molecules from one cell to another
C) integrity of the inner lining of the digestive tract
D) attachment of the cytoskeleton to the inside of the plasma membrane

Question

Quizplus · Accepted Answer

Tight junctions are crucial for maintaining the integrity of barriers in tissues, such as the inner lining of the digestive tract. They prevent the passage of molecules and ions through the space between cells, ensuring that substances must pass through the cells rather than between them. This is especially important in the digestive tract, where the barrier must selectively allow the absorption of nutrients while preventing the entry of harmful substances.

Which of the Following Would Be Most Affected by a Mutation