MDCAT Biology Gaseous Exchange Online Test MCQS

Photo of Malik Tahir Malik TahirLast Updated: July 12, 2025

MDCAT Biology Gaseous Exchange Test

Prepare for MDCAT Biology with this focused MCQ test on Gaseous Exchange. This quiz includes important questions on respiratory structures, mechanisms of gas exchange, and differences in plants and animals, following the latest MDCAT 2025 syllabus.

MDCAT 2025 Gaseous Exchange Test

Total Questions: 25
Time Allowed: 15 Minutes
Total Marks: 25
How to Attempt Test: Please choose the right Option in MCQ-type question.
Test Helpful For: MDCAT Entry Test
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Gaseous Exchange MCQS Online Question with Answer

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1. In cockroach the main tracheal trunk communicates with exterior by 10 pairs of paired apertures called  ?

2. Water is _______ times more viscous than air ?

3. Photoresptration take place in ?

4. In fish the heart pumps blood directly to ?

5. At all levels of activities in living organisms an uninterrupted supply of _______is required ?

6. Breathing is directly involved in the exchange of ?

7. Photorespiration in plants takes pace when ?

8. Parabronchi are thin walled ducts present in the respiratory system of ?

9. The cork tissue has special pores involved in gaseous exchange called ?

10. Respiration is one of the most important metabolic activities of ?

11. Air spaces between mesophyll cells of a leaf comprise _______of total volume

12. In birds during respiration the flow of air is ?

13. Respiration os one of the most important metabolic activities of ?

14. The main source of exchange of gases in plants is ?

15. Exchange of gases during organismic respiration is carried out only by ?

16. In earthworm the exchange of gasses mainly occurs through ?

17. Infact photorespiration is reverse of ?

18. Oxygen content of fresh air is about ?

19. Hydra respires through ?

20. The heart of fish is ?

21. In frog respiration occurs through ?

22. ATP is produced during ?

23. Organismic respiration is also known as ?

24. In peroxisome the glycolate is converted in to ?

25. Four to five pairs of gills in fish are placed in bronchial cavities and are covered by ?


 

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Photo of Malik Tahir Malik TahirLast Updated: July 12, 2025
Photo of Malik Tahir

Malik Tahir

Greetings, learners! I'm Tarry Malik, your guide to conquering the world of Exams prep and Online studies. Let's navigate the textbooks together, share study hacks, and make your educational journey a breeze.
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