Question

question which of the following characteristics describes the properties of epithelial tissue? select all that apply epithelial tissues are avascular. the basal surface of all epithelial tissues is bound to a basement membrane. epithelial tissues have an exposed surface. epithelial tissue has an abundance of extracellular material.

Explanation:

1. Epithelial tissues are avascular: Epithelial tissues do not have blood vessels (avascular), they get nutrients by diffusion from underlying tissues. So this is correct.
2. The basal surface of all epithelial tissues is bound to a basement membrane: The basal surface of epithelial cells attaches to the basement membrane, which is a key feature. So this is correct.
3. Epithelial tissues have an exposed surface: Epithelial tissues form linings or coverings, so they have an apical (exposed) surface. So this is correct.
4. Epithelial tissue has an abundance of extracellular material: Epithelial tissue has very little extracellular material; most of the tissue is cells. So this is incorrect.

Answer:

• Epithelial tissues are avascular.
• The basal surface of all epithelial tissues is bound to a basement membrane.
• Epithelial tissues have an exposed surface.