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Question 11.Contraction of which muscle results in inspiration?
Question 22.During gas exchange _____ moves into the blood and _____ out of the blood across the respiratory membrane in the lungs.
Question 33.Homeostasis can be defined as _____.
Question 44.The gas exchange in metabolizing tissues is known as _____.
Question 55.As we climb a mountain, the atmospheric pressure _____ and this makes it _____ to breath and obtain oxygen.
Question 66.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 77.Through the same reaction that forms bicarbonate, something else is produced. What is it and how is it utilized?
Question 88.Which molecule decreases surface tension and thus makes ventilation possible?
Question 99.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 1010.Which of the following best explains how 2,3-BPG works to help unload oxygen from hemoglobin?
Question 1111.Identify the molecule to which oxygen binds within red blood cells.
Question 1212.What is transpulmonary pressure?
Question 1313.Consider the receptors that are part of the homeostatic system for regulation of ventilation. Which of the following are the central chemoreceptors sensitive to?
Question 1414.Which of the following events occurs first during inspiration?
Question 1515.The partial pressure of the gases we breathe in from the air is the pressure contributed by a single gas in a mixture of multiple gases. The partial pressure of a gas is _____ to the concentration of the gas.
Question 1616.Carbon dioxide is a cellular waste product that our bodies remove though _____.
Question 1717.What is the integration center for the homeostatic regulation of ventilation?
Question 1818.The upper respiratory system includes the mouth, nose and _____.
Question 1919.Which of the following is NOT true concerning ventilation?
Question 2020.At high temperatures hemoglobin unloads oxygen; this means that at high temperatures the affinity of hemoglobin for oxygen _____.
Question 2121.Which of the following is true about transpulmonary pressure?
Question 2222.Consider the following mixture of gases: 20% oxygen, 40% carbon dioxide, and 40% nitrogen. If the total pressure is 1000 mmHg, then what is the partial pressure of oxygen?
Question 2323.High carbon dioxide levels in the blood or _____ can stimulate ventilation in a healthy person.
Question 2424.Which of the following best explains why someone may experience shortness of breath on top of a mountain?
Question 2525.Why does the process of gas exchange need to be efficient?
Question 2626.What would be the symptoms of low levels of hemoglobin?
Question 2727.Which of the following is the best description of blood leaving the metabolizing tissues and returning to the lungs?
Question 2828.Oxygen is transported in the blood bound to a protein called _____.
Question 2929.Water has a high surface tension; this means that it can _____.
Question 3030.Oxygen must first be dissolved in the _____ before it can enter the red blood cell and be transported throughout the body.
Human Respiratory System Chapter Exam Instructions
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