Biology Practice: The Respiratory System (Mock Test 1 - Basic)
1. Which of the following is the primary site of gaseous exchange in the human lungs?
2. The "Voice Box" is anatomically known as the:
3. What is the role of the "Epiglottis" during swallowing?
4. The trachea is prevented from collapsing by C-shaped rings made of:
5. Which muscle separates the thoracic cavity from the abdominal cavity and aids in breathing?
6. The double-layered membrane that protects the lungs is called the:
7. Vital capacity is the maximum volume of air that can be:
8. Which of the following is an example of anaerobic respiration in humans?
9. Tidal volume is the amount of air inspired or expired during:
10. Oxygen is transported in the blood primarily by:
11. The process of taking air into the lungs is called:
12. During inhalation, the diaphragm:
13. The percentage of oxygen in expired air is approximately:
14. Which chemical is used to test for the presence of $CO_2$ in exhaled air?
15. The narrowest tubes in the lungs that lead into the alveoli are:
16. "Hiccups" are caused by the involuntary spasm of the:
17. Respiration that takes place inside the cells is called:
18. The main purpose of respiration is to release:
19. Which of the following describes the condition "Bronchitis"?
20. The tiny hair-like structures that line the respiratory tract to sweep out dust are:
