In-Text Figure Based Questions
-Which is the only type of cell junction shown here that allows the diffusion of ions and molecules between cells? (Figure 4-3)
A) tight junction
B) gap junction
C) hemidesmosome
D) spot desmosome
E) adhesion belt

Question

Quizplus · Accepted Answer

Gap junctions are the only type of cell junction shown in Figure 4-3 that allow the diffusion of ions and molecules between cells. Tight junctions seal adjacent cells together, hemidesmosomes and spot desmosomes anchor cells to the extracellular matrix, and adhesion belts help maintain the shape of tissues.