Biology Quiz: Take The Respiratory System Trivia Questions!

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  • 1/79 Questions

    Air exchange within the alveoli takes place by?

    • Diffusion
    • Transfusion
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About This Quiz

The respiratory system is a biological system made up of specific organs used for gas exchange in animals and plants. The anatomy and physiology that make this system vary greatly. It depends on the size of the organism, the environment in which it lives, and it’s evolutionary history. Designed to pull oxygen from the air through the lungs, it enters the bloodstream and expels carbon dioxide. Take a deep breath and take the quiz.

Biology Quiz: Take The Respiratory System Trivia Questions! - Quiz

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  • 2. 

    Water vapour is expired from the lungs?

    • True

    • False

    Correct Answer
    A. True
  • 3. 

    The alveoli walls are classed as semi–permeable membrane?

    • True

    • False

    Correct Answer
    A. True
  • 4. 

    The trachea is composed of c-shaped cartilage?

    • True

    • False

    Correct Answer
    A. True
  • 5. 

    In chronic bronchitis the bronchial muscle glands secrete excess mucous?

    • True

    • False

    Correct Answer
    A. True
  • 6. 

    Which lung has 3 lobes?

    • The right

    • The left

    Correct Answer
    A. The right
  • 7. 

    How many lobes does the left lung have?

    • 2

    • 4

    • 3

    • 5

    • 1

    Correct Answer
    A. 2
  • 8. 

    Ventilation is the process of moving air in and out of the lungs?

    • True

    • False

    Correct Answer
    A. True
  • 9. 

    The medulla oblongata regulates the respiratory system?

    • True

    • False

    Correct Answer
    A. True
  • 10. 

    Blood circulation in the lungs is called?

    • Pulmonary circulation

    • Systemic circulation

    Correct Answer
    A. Pulmonary circulation
  • 11. 

    There are two types of respiration?

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Internal and external

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  • 12. 

    Internal respiration is the exchange of gases between the blood and the cell tissues?

    • True

    • False

    Correct Answer
    A. True
  • 13. 

    How many lobes does the right lung have?

    • 2

    • 4

    • 3

    • 5

    • 1

    Correct Answer
    A. 3
  • 14. 

    The larynx is protected by the epiglottis that shuts when food or fluids are being swallowed and opens for breathing. Does this mechanism still work in a unconscious patient? 

    • No

    • Yes

    Correct Answer
    A. No
  • 15. 

    Which receptor monitors CO2 and O2 in the blood?

    • Chemoreceptors

    • Baroreceptors

    Correct Answer
    A. Chemoreceptors
  • 16. 

    The respiratory system maintains the pH levels of the blood. What should the level be?

    • 7.4

    • 1.0

    • 8.9

    • 6.9

    Correct Answer
    A. 7.4
    Explanation
    0 is like battery acid, 7 is neutral and 12 is like soapy water.

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  • 17. 

    What is the most important muscle of inhalation?

    • Diaphragm

    • Heart

    • Abdo

    • Lungs

    • Chest muscles

    Correct Answer
    A. Diaphragm
  • 18. 

    Which network surrounds the alveoli?

    • Capillaries

    • Lungs

    • Nerves

    • Blood

    Correct Answer
    A. Capillaries
  • 19. 

    During inhalation the intercostal muscles?

    • Contract

    • Relax

    Correct Answer
    A. Contract
  • 20. 

    Emphysema is where the lung tissues lose their elasticity?

    • True

    • False

    Correct Answer
    A. True
  • 21. 

    Hypercarbia means lack of carbon dioxide in the blood?

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The physical condition of having the presence of an abnormally high level of carbon dioxide in the circulating blood.

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  • 22. 

    The alveoli are lined with a substance called?

    • Surfactant

    • Oxygen

    • Muscle

    • Capillaries

    Correct Answer
    A. Surfactant
  • 23. 

    Inspiration is the process of moving air out of the lungs?

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Inspiration is the process of moving there into the lungs. Expiration is the process of moving there out of the lungs.

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  • 24. 

    The alveoli are lined with a substance know as?

    • Surfactant

    • Oxygen

    • Muscle

    • Capillaries

    Correct Answer
    A. Surfactant
  • 25. 

    Every living cell in the body requires an interruptible supply of oxygen?

    • True

    • False

    Correct Answer
    A. True
  • 26. 

    An exchange of gases happens in 2 places?

    • True

    • False

    Correct Answer
    A. True
  • 27. 

    Chemoreceptors detect changes every minute in the?

    • PCO2 levels

    • 02 levels

    Correct Answer
    A. PCO2 levels
  • 28. 

    Gases move from a lower region of pressure to a region of high pressure?

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Gas will always move from a region of high pressure to a region of low pressure.

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  • 29. 

    The functions of  the respiratory system are?

    • Extract oxygen form the atmosphere

    • Excrete water and Co2

    • Maintain pH levels of the blood

    • Ventilate the lungs

    • Keep the heart beating

    Correct Answer(s)
    A. Extract oxygen form the atmosphere
    A. Excrete water and Co2
    A. Maintain pH levels of the blood
    A. Ventilate the lungs
  • 30. 

    Emphysema patients have difficulty in exhaling?

    • True

    • False

    Correct Answer
    A. True
  • 31. 

    The average resp rate of a adult at rest is between?

    • 10 to 20

    • 12 to 25

    • 15 to 30

    • 30 to 40

    Correct Answer
    A. 10 to 20
  • 32. 

    Which bronchus is wider?

    • Right

    • Left

    Correct Answer
    A. Right
  • 33. 

    Emphysema directly affects the upper respiratory passages?

    • True

    • False

    Correct Answer
    A. False
  • 34. 

    External respiration is the exchange of gases between the lungs and the blood?

    • True

    • False

    Correct Answer
    A. True
  • 35. 

    The respiratory system contains receptors for the sense of smell?

    • True

    • False

    Correct Answer
    A. True
  • 36. 

    Respiratory volumes & capacities Q: Tidal volume in a adult is?

    • 500 mL

    • 3100 mL

    • 1200 mL

    • 3600 mL

    • 4800 mL

    • 2400 mL

    Correct Answer
    A. 500 mL
  • 37. 

    All of the following make up the respiratory tract except? 

    • Diaphragm

    • Nose

    • Pharynx

    • Larynx

    • Trachea

    • Bronchi

    • Bronchioles

    • Alveolar ducts

    • Alveoli

    Correct Answer
    A. Diaphragm
  • 38. 

    Internal respiration takes place in the lungs?

    • True

    • False

    Correct Answer
    A. False
    Explanation
    External respiration takes place in the lungs, internal respiration takes place in the tissues.

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  • 39. 

    Chemoreceptors can be found in the heart? 

    • True

    • False

    Correct Answer
    A. False
    Explanation
    They are found in the aortic arch.

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  • 40. 

    Stretch receptors in the lungs are responsible for the Hering-Breuer reflex which causes you to take deep breaths?

    • True

    • False

    Correct Answer
    A. True
  • 41. 

    The anatomical dead space includes the trachea & larger bronchi?

    • True

    • False

    Correct Answer
    A. True
  • 42. 

    Apnoea means difficult or laboured breathing?

    • True

    • False

    Correct Answer
    A. False
  • 43. 

    Expired air contains approximately?

    • 79% nitrogen

    • 16% oxygen

    • 4% C02

    • 1% inert gases

    • Water vapour (variable)

    • 20% oxygen

    • 0.04% C02

    Correct Answer(s)
    A. 79% nitrogen
    A. 16% oxygen
    A. 4% C02
    A. 1% inert gases
    A. Water vapour (variable)
  • 44. 

    Inspired air contains approximately? 

    • 78% nitrogen

    • 21% oxygen

    • 0.04% C02

    • 1% inert gases

    • Water vapour (variable)

    • 16% oxygen

    • 4% Co2

    Correct Answer(s)
    A. 78% nitrogen
    A. 21% oxygen
    A. 0.04% C02
    A. 1% inert gases
    A. Water vapour (variable)
  • 45. 

    How many litres of air can the lungs hold?

    • 6 litres

    • 5.3 litres

    • 3.5 litres

    • 3 litres

    • 2 litres

    Correct Answer
    A. 6 litres
  • 46. 
    The trachea is composed of approx how many pieces of C shape cartilage?   - ProProfs

    The trachea is composed of approx how many pieces of C shape cartilage?  

    • 16 to 20

    • 12 to 15

    • 10 to 25

    • 25 to 30

    Correct Answer
    A. 16 to 20
  • 47. 

    Pulmonary ventilation is which law?

    • Boyles Law

    • Dalton's Law

    Correct Answer
    A. Boyles Law
  • 48. 

    The upper airway is from nose to the pharynx?

    • True

    • False

    Correct Answer
    A. True
  • 49. 
    The trachea of an average sized adult is? - ProProfs

    The trachea of an average sized adult is?

    • 10 - 12 cm long

    • 16 - 18 cm long

    • 20 - 22 cm long

    • 24 - 28 cm long

    Correct Answer
    A. 10 - 12 cm long

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2022
    Quiz Edited by
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  • Mar 03, 2014
    Quiz Created by
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