Generally, Epithelial Cell Layers Are Responsible for Separating Two Fluids

question 13

Multiple Choice

Generally, epithelial cell layers are responsible for separating two fluids. For example, the epithelium of blood vessels in animals separates the blood from the interstitial fluid. What characteristic would you expect to see in an epithelium that was specialized for passive diffusion of materials from one fluid to another?

• A) a single layer of flattened cells
• B) many layers of cells stacked together
• C) large, cube-shaped cells
• D) loosely connected cells surrounded by an extracellular matrix

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