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

3. The biological functions which perform gaseous exchange:

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

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

6. It contains vocal cords to produce sound.

7. Respiratory surface possesses the following property:

8. Carbon dioxide is taken in the process of:

9. In humans, the process of respiration involves:

10. Inspiration involves:

11. Stomata are present in:

12. Plants do the exchange of gases through:

13. Expiration involves:

14. Each lung is made up of millions of:

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

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

17. we use normally about __________ of the air coming into the lungs.

18. Each stoma is formed by:

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

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