Question

Without tight junctions in certain tissues ________.

A. cells would not be able to communicate with each other
B. fluids may leak out past the barrier the junction would create
C. the tissues would not be able to expand and stretch without damage
D. nutrients would not be able to be passed from cell to cell

Answer 1

Without tight junctions, fluids may leak out past the barrier that these junctions normally create in tissues.

Step-by-step explanation:

Without tight junctions in certain tissues, fluids may leak out past the barrier the junction would create. Tight junctions form watertight connections between adjacent animal cells, and their main function is to prevent materials from leaking between the cells. They are especially crucial in epithelial tissues that line internal organs and cavities, such as the urinary bladder, where they prevent urine from leaking into the extracellular space. The tightening of cells by these junctions is pivotal for maintaining the barrier function of epithelia in various organs.