Online MCQs Test – Gaseous Exchange – Biology 10th

1. The amount of molecular oxygen present in the air is about:

2. Larynx is located on:

3. Stomata are present in:

4. Each bronchiole is a very thin tube that opens into:

5. Trachea in the center of the thorax bifurcates into two smaller ducts, called:

6. In the lower part of the thorax, lies a sheet of muscles called:

7. The gaseous exchange takes place at the level of alveoli. This gaseous exchange involves:

8. Inspiration involves:

9. These are microscopic openings present in the epidermis of leaves.

10. Plants exchange gases for the process/es of:

11. It is regulated by the hypothalamus of our brain.

12. Lungs can be filled with a maximum amount of:

13. The amount of molecular oxygen present in water is about:

14. The biological functions which perform gaseous exchange:

15. Each lung is soft, spongy and:

16. Each stoma is formed by:

17. In humans, the process of respiration involves:

18. Which of the following disorder is associated with inflammation of air passageways?

19. Plants do the exchange of gases through:

20. Expiration involves: