Question

in observing epithelial cells under a microscope, the cells are arranged in a single layer and look tall and narrow, and the nucleus is located close to the basement membrane of the cell. the specimen is what type of epithelial tissue? a columnar b stratified c squamous d transitional

Explanation:

• Columnar epithelial cells are typically arranged in a single layer, have a tall and narrow shape, and the nucleus is located close to the basement membrane.
• Stratified epithelium has multiple layers.
• Squamous epithelium has flat cells.
• Transitional epithelium can change shape (e.g., stretch) and is not characterized by the described features.

Answer:

A. columnar