Online MCQs Test – Gaseous Exchange – Biology 10th

1. In the following, the alveoli are infected so they may be filled with fluid or pus.

2. Each lung is made up of millions of:

3. In humans, the process of respiration involves:

4. It is an allergic response to pollens, dust, smoke, fur, feathers and several other substances.

5. The total surface area of the respiratory surface in human is about.

6. Stomata are present in:

7. The opening of larynx has a lid like cover called:

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

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

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

11. Plants do the exchange of gases through:

12. Each stoma is formed by:

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

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

15. Inspiration involves:

16. Increase in rate of breathing is due to the following:

17. Expiration involves:

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

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

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