Question

The epithelium having cube-shaped cells are present in:
(a) Lining of the kidney tubules
(b) Inner lining of the intestine
(c) Respiratory tract
(d) Ducts of salivary glands.

• A. (a), (b) and (c)
• B. (b) and (c) only
• C. (a) and (d) only
• D. (a) and (c) only

Answer 1

The correct option is C (a) and (d) only

Epithelial tissues are of 4 types, namely squamous epithelial tissue, cuboidal epithelial tissue, columnar epithelial tissue, and ciliated epithelial tissue. Squamous epithelial cells are thin, flat cells and are present in the cavities of the mouth, esophagus, alveoli, and blood vessels. Cuboidal epithelial cells are cube-shaped and are present in the ducts of salivary glands, the lining of the kidney tubules, etc. Columnar epithelial cells are long cells and are present in the lining of the stomach and intestine. Ciliated epithelial cells are columnar cells with cilia. These are present in the lining of the trachea, kidney tubules, respiratory tract.

Thus, the correct answer is an option C '(a) and (d) only.'