1. Very high number of alveoli present in a lung is meant for

2. The alveolar epithelium in the lungs is:

3. A person suffers punctures in his chest cavity in an accident without any damage to the lungs. Its effect could be

4. Which of the following statement is true?

5. The process of migration of chloride ions from plasma to RBC and of carbonate ions from RBC to plasma is:

6. Which one of the followings is correct regarding larynx?

7. When CO₂ concentration in blood increases, breathing becomes:

8. The maximum volume of air that can be released from the lungs by forceful expiration after deepest inspiration is called the ______.

9. Azygous lobe is part of

10. Trachea divides into bronchi at

11. Which one of the following is NOT correct?

12. Regarding the functions of our respiratory system, mark the wrong entry.

13. Intercostal muscles occur in:

14. Which one of the following mammalian cells is not capable of metabolising glucose to carbon-dioxide aerobically?

15. The maximum volume of air contained in the lung by a full forced inhalation is called

16. Which organ lies in thoracic cavity?

17.  Respiration in insects is called direct because

18. Aerobic respiratory pathway is also termed as ______ pathway.

19. The oxygen dissociation curve is shifted to the right by an increase in ______.

20. Which of the following statements is true about Trachea in a respiratory system?