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

2. Infact photorespiration is reverse of ?

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

4. Photoresptration take place in ?

5. ATP is produced during ?

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

7. Hydra respires through ?

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

9. The heart of fish is ?

10. Organismic respiration is also known as ?

11. Water is _______ times more viscous than air ?

12. Photorespiration in plants takes pace when ?

13. In frog respiration occurs through ?

14. Breathing is directly involved in the exchange of ?

15. In fish the heart pumps blood directly to ?

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

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

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

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

20. Oxygen content of fresh air is about ?

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

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

23. In peroxisome the glycolate is converted in to ?

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

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


 

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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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