Science Trivia Questions On Human Respiratory System! Quiz

9 Questions | Total Attempts: 6470

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Science Trivia Questions On Human Respiratory System! Quiz

Below is a Science Trivia Questions Quiz on Human Respiratory System! This system is the body is charged with breathing, and it is made up of a lot of organs, with the main one being the lungs. As breathing takes place, oxygen is taken into the body, and carbon dioxide is expelled. Know how the system works by taking this quiz.

Questions and Answers
  • 1. 
    How many litre of air can be contained in an adult's lung?
  • 2. 
     What is the composition of oxygen in our exhaled air?
    • A. 


    • B. 


    • C. 


    • D. 


    • E. 


  • 3. 
    This is a small but delicate sac surrounded by blood capillaries.
  • 4. 
    State the thing in your red blood cell that combines with carbon monoxide to form carboxy**** that reduce your gaseous exchange efficiency.
  • 5. 
    This action includes oxidation of food.
    • A. 


    • B. 


    • C. 


    • D. 


  • 6. 
    Estimate the length of trachea (in cm)
  • 7. 
    What substance that makes your lung turns black in color?
  • 8. 
    This substance stimulates the growth of cancer cells, causing cancer.
  • 9. 
    Write the path of air inhalation? like this Testes-Sperm duct-......-Fallopian tube all in singular verb
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