Question

Which of the following is incorrect statement for the simple columnar epithelium :-

• A. It is composed of a single layer of tall and slender cells
• B. Their nuclei are located at the base
• C. Free surface may have microvilli
• D. They are found in the walls of blood vessels and air sac of lungs

Answer 1

The correct option is D They are found in the walls of blood vessels and air sac of lungs

The simple columnar epithelium is composed of a single layer of tall and slender cells. Their nuclei are located at the base. Free surface may have microvilli. They are found in the lining of stomach and intestine and help in secretion and absorption.
The simple squamous epithelium is made of a single thin layer of flattened cells with irregular boundaries. They are found in the walls of blood vessels and air sacs of lungs and are involved in functions like forming a diffusion boundary.

So, the correct answer is option 'd'.