Question

multiple choice question where is the apical surface of epithelium found? attached to the basement membrane in between adjacent cells exposed to an open space

Explanation:

The apical surface of epithelium is defined as the surface that faces an open space (like a lumen or the external environment), while the basal surface is attached to the basement membrane and lateral surfaces are between adjacent cells. So the apical surface is exposed to an open space.

Answer:

C. Exposed to an open space (assuming the options are labeled A, B, C as "Attached to the basement membrane", "In between adjacent cells", "Exposed to an open space" respectively)