1.  Respiration in insects is called direct because

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

3. Which organ lies in thoracic cavity?

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

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

6. Intercostal muscles occur in:

7. Azygous lobe is part of

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

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

10. Trachea divides into bronchi at

11. Which of the following statement is true?

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

13. The alveolar epithelium in the lungs is:

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

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

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

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

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

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

20. Which one of the following is NOT correct?