Cell Junctions and Cell Signalling Pathways · Zoology

Loss of tight junction integrity in epithelial cells would most directly result in:

  1. Reduced cell adhesion strength
  2. Increased paracellular permeability
  3. Failure of electrical coupling
  4. Loss of basement membrane attachment
Show answer and explanation

Correct answer: Increased paracellular permeability

Tight junctions control paracellular permeability. Their disruption allows uncontrolled passage of substances between cells.

Difficulty: Medium Question 19 of 20

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