Biology Gaseous Exchange Online Test MCQS

Malik TahirLast Updated: October 14, 2025

Start your preparation for Biology Gaseous Exchange Online Test MCQS. This online test contains important MCQs from past papers. Attempting this test will help you prepare for Annual Exams and Entry Tests. Read the questions carefully and select the correct option below to see your result.

Important Biology Gaseous Exchange Question and Answer

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: Biology Test
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Biology Gaseous Exchange Practice Test Online With Explanation

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1. Photorespiration in plants takes pace when ?

2. Photoresptration take place in ?

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

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

5. The heart of fish is ?

6. In frog respiration occurs through ?

7. Hydra respires through ?

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

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

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

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

12. Water is _______ times more viscous than air ?

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

14. Organismic respiration is also known as ?

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

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

17. Breathing is directly involved in the exchange of ?

18. In peroxisome the glycolate is converted in to ?

19. In fish the heart pumps blood directly to ?

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

21. Oxygen content of fresh air is about ?

22. ATP is produced during ?

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

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

25. Infact photorespiration is reverse of ?


 

How to Score High in Biology Gaseous Exchange Online Test MCQS?

Mastering scientific subjects requires conceptual clarity.

Key Preparation Tips:

  • Concepts First: Ensure you understand the underlying theories before attempting the MCQs.
  • Time Management: Attempt this online quiz multiple times to improve your speed.

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Malik TahirLast Updated: October 14, 2025

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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