Respiratory System Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Which of the following is true of the partial pressure of a gas in a mixture?

Question 2 2. Which of the following occurs first in the lungs?

Question 3 3. How many oxygen molecules can each molecule of hemoglobin bind?

Question 4 4. Contraction of which muscle results in inspiration?

Question 5 5. Through the same reaction that forms bicarbonate, something else is produced. What is it and how is it utilized?

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Question 6 6. Why does air move out of the lungs during expiration?

Question 7 7. What is the molecule that transports oxygen from our lungs to our tissues?

Question 8 8. Which of the following gestation periods is the shortest while still allowing the child to breathe on their own?

Question 9 9. Which of the following correctly represents the formula for the maximum volume of air that our lungs can hold?

Question 10 10. What is the pleural membrane that lines the inside of the chest wall and extends over the diaphragm called?

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Question 11 11. What is the primary stimulant for ventilation in healthy persons?

Question 12 12. Which problem is caused by a lack of pulmonary surfactant?

Question 13 13. Which of the following is part of the lower respiratory system?

Question 14 14. Which of the following terms describes a collection of air within the pleural cavity that causes the lungs to collapse?

Question 15 15. What would be the symptoms of low levels of hemoglobin?

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Question 16 16. What is the partial pressure of oxygen in the alveolar air and oxygen rich blood leaving the lungs?

Question 17 17. Which of the following best explains why someone may experience shortness of breath on top of a mountain?

Question 18 18. Which structure provides support and flexibility for the trachea?

Question 19 19. How does a spirometer perform a pulmonary function test?

Question 20 20. Which molecule decreases surface tension and thus makes ventilation possible?

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Question 21 21. Which of the following best describes external respiration?

Question 22 22. Which of these structures is not a part of the respiratory system?

Question 23 23. What is transpulmonary pressure?

Question 24 24. Identify the molecule to which oxygen binds within red blood cells.

Question 25 25. Why are lungs internalized in terrestrial animals?

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Question 26 26. Consider a person breathing 100% oxygen. What would the partial pressure of oxygen be in the inspired air with an atmospheric pressure of 760 mmHg?

Question 27 27. Carbon dioxide is a waste product created during ATP synthesis. As it is being transported from our tissues back to the lungs, some of it is dissolved in plasma, the rest is converted and transported as other substances. Most of the carbon dioxide is converted into which of these substances?

Question 28 28. Even though carbon dioxide is a cellular waste product, it is converted through a reaction with water to create bicarbonate. The bicarbonate then performs an important role after it diffuses back into the plasma. What is it?

Question 29 29. The process that takes place in the lungs which involves the movement of oxygen and carbon dioxide is known as _____.

Question 30 30. Pulmonary function tests assess an individual's _____, which is simply the movement of air into the lungs, known as _____ and the movement of air out of the lungs, known as _____.

Respiratory System Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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