10th Class Chapter No.1
Biology MCQs Online Quiz
All MCQs Selected from Old Board Papers
Best MCQs for Board Examination
Total MCQs ( in this Quiz ) = 50
56. What is the purpose of the little hair inside the nose?
A. to fight disease
B. they serve no porpuse
C. to keep dust out of lungs
D. to tickle the nose and cause sneezes
Answer:
C. to keep dust out of lungs
57. Bronchioles end as fine tubules called:
A. trachea
B. cartilage tube
C. diaphragm
D. alveolar ducts
Answer:
D. alveolar ducts
58. A cluster of pouches in which alveolar duct opens is called:
A. alveoli
B. bronchi
C. bronchus
D. esophagus
Answer:
A. alveoli
59. Which surface of human body is formed by alveoli?
A. digestive surface
B. excretory surface
C. respiratory surface
D. reproductive surface
Answer:
C. respiratory surface
60. A sac like structure lined by single layer of epithelial cells is known as…
A. alveolus
B. bronchus
C. bronchi
D. larynx
Answer:
A. alveolus
