Online MCQs Test – Gaseous Exchange – Biology 10th

Class 10th | Biology | Chapter 1 | Gaseous Exchange | Solved Online MCQs Test

Online MCQs Test of Chapter 1 (Gaseous Exchange) Biology Class 10th Science Group – Sindh Board. According to New Examination Pattern / Syllabus of Sindh Board

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

 
 
 
 

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

 
 
 
 

3. Carbon dioxide is taken in the process of:

 
 
 
 

4. It is wrapped in two pleural membranes.

 
 
 
 

5. The process of breathing consists of:

 
 
 
 

6. The biological functions which perform gaseous exchange:

 
 
 
 

7. Inspiration involves:

 
 
 
 

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

 
 
 
 

9. Ribs are attached with:

 
 
 
 

10. The respiratory surface of human is:

 
 
 
 

11. Each bronchus have:

 
 
 
 

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

 
 
 
 

13. Respiratory surface possesses the following property:

 
 
 
 

14. Plants do the exchange of gases through:

 
 
 
 

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

 
 
 
 

16. Expiration involves:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. In humans, the process of respiration involves:

 
 
 
 


Online MCQs Test preparation for Biology Class 10th (Science Group Sindh Board) helps students practice effectively. These multiple-choice questions are taken from Chapter 1 “Gaseous Exchange” of the Class 10th Biology textbook.
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