Online MCQs Test – Gaseous Exchange – Biology 10th

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

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

3. Each lung is soft, spongy and:

4. The process of breathing consists of:

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

6. Ribs are attached with:

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

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

9. Each bronchus have:

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

11. Larynx is located on:

12. The internal opening of nasal sacs opens into a long tube called:

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

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

15. The biological functions which perform gaseous exchange:

16. It contains vocal cords to produce sound.

17. Each lung is made up of millions of:

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

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

20. Stomata are present in: