The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in
Answer: (D) Bronchioles and Fallopian tubes. Answer: (4) Bronchioles and Fallopian tubes.
- A.Bile duct and Bronchioles
- B.Fallopian tubes and Pancreatic duct
- C.Eustachian tube and Salivary duct
- D.Bronchioles and Fallopian tubes✓
Correct Answer
(D) Bronchioles and Fallopian tubes
Solution & Explanation
Answer: (4) Bronchioles and Fallopian tubes. Solution: Ciliated epithelium bears motile cilia on its free surface that beat to move mucus or particles in one direction; in humans it lines the inner surface of hollow organs such as the bronchioles (respiratory tract, to move mucus) and the fallopian tubes (to move the ovum). The bile duct, pancreatic duct and salivary ducts are lined by non-ciliated (mostly cuboidal/columnar) glandular-duct epithelium, so the other options are incorrect. NCERT (Class XI, Structural Organisation in Animals — Animal Tissues, pre-2023 rationalisation text): epithelial tissue — ciliated columnar epithelium.