Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 46, Problem 10TYK
Summary Introduction
Introduction:
CO2 (carbon dioxide) is produced in the body cells by
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The information provided suggests that:
A. hemoglobin has more affinity to oxygen than to carbon monoxide.
B. hemoglobin has more affinity to carbon dioxide than to carbon monoxide.
C .carbon monoxide likely shifts the O2-Hb dissociation curve to the right.
D. None of the above
Keep in mind the chemical reaction: CO2 + H20 H2CO3 H* + HCO3
A patient on a mechanical respirator often suffers from alkalosis because
a.
excess of oxygen favors reaction to the left side
hyperventilation leads to removal of excess of CO2
b.
Oc.
hyperventilation leads to removal of excess of H* ion along with CO2 as both have increased.
Both (b) and (c) are correct.
Od.
At the site of gas exchange; which of the following is true?
A. The alveoli and capillaries walls are thin which allowed for rapid diffusion of gas.
B. When there is edema and swelling at the alveoi and capillary interface there is rabbit exchange of CO2.
C. When there is edema and swelling at the alveoli and capillaries in her face there is rapid exchange of oxygen.
D. The alveolar in capillary walls or take which allows for measured in rapid diffusion of gas.
Choose the correct answer
Chapter 46 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 46.1 - Distinguish between the roles of the respiratory...Ch. 46.1 - What is an advantage of water over air as a...Ch. 46.2 - What advantages do gills confer on a...Ch. 46.2 - Prob. 2SBCh. 46.2 - Prob. 3SBCh. 46.2 - Distinguish between positive pressure breathing...Ch. 46.3 - Prob. 1SBCh. 46.3 - Prob. 2SBCh. 46.3 - Prob. 3SBCh. 46.4 - Explain the role of hemoglobin in gas exchange.
Ch. 46.4 - Prob. 2SBCh. 46.5 - What are the key evolutionary adaptations that...Ch. 46 - Prob. 1TYKCh. 46 - Prob. 2TYKCh. 46 - Prob. 3TYKCh. 46 - Prob. 4TYKCh. 46 - Prob. 5TYKCh. 46 - Prob. 6TYKCh. 46 - Prob. 7TYKCh. 46 - Oxygen enters the blood in the lungs because...Ch. 46 - Prob. 9TYKCh. 46 - Prob. 10TYKCh. 46 - Prob. 11TYKCh. 46 - Prob. 12TYKCh. 46 - Prob. 13TYKCh. 46 - Prob. 14TYKCh. 46 - Prob. 15TYKCh. 46 - Lycopene, which is abundant in tomatoes, is...Ch. 46 - Prob. 2ITD
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- In______, gas exchange occurs at the body surface and gas is distributed by diffusion alone. a. earthworm c. frogs b. flatworms d. insectsarrow_forwardUnderwater, we humans cant compete with whales and other air-breathing marine mammals, which can stay submerged for extended periods. At the beach one day you meet a surfer who tells you that special training could allow her to swim underwater without breathing for an entire hour. From what you know of respiratory physiology, explain why she is mistaken.arrow_forward2. Which of the following has the most powerful effect on the respiratory components of the medulla? A. Decreased O2 B. Increased H+ C. Decreased CO2 D. Increased pHarrow_forward
- Of the following, which does not explain why the partial pressure of oxygen is lower in the lung than in the external air? Air in the lung is humidified; therefore, water vapor pressure alters the pressure Carbon dioxide mixes with oxygen Oxygen is moved into the blood and is headed to the tissues Lungs exert a pressure on the air to reduce the oxygen pressure.arrow_forwardThe inspiratory reserve volume measures the ___________ . amount of air remaining in the lung after a maximal exhalation amount of air that the lung holds amount of air that can be further exhaled after a normal breath amount of air that can be further inhaled after a normal breatharrow_forwardLycopene, which is abundant in tomatoes, is thought to have a potential benefit in protecting against many types of cancers. In the study, the results of which are shown in the Figure, mice were exposed to tobacco smoke or normal air. The amount of lung tissue damage caused by each exposure was measured in mice that were given tomato juice (1) or water (2). To estimate the destruction of the alveolar wall, a destructive index (DI) was calculated from histological slides of the lung. All lungs will show some level of damage, but a DI above 10% is considered significant destruction. What is the effect of tobacco smoke on the lung tissue in these mice? Source: Based on S. Kasagi et al. 2006. Tomato juice prevents senescence-accelerated mouse P1 strain from developing emphysema induced by chronic exposure to tobacco smoke. American Journal of PhysiologyLung Cellular and Molecular Physiology 290:L396L404.arrow_forward
- when carbon dioxide travelling in the plasma reaches the alveolus and is exhaled, then what happens is that a. the volume of CO2 dissolved in the plasma would continue to drop until it reached zero b. the bicarbonate ion volume in the plasma would increase c. respiration would be stimulated and tidal volume would go up d. the CO2 attached onto the hemoglobin would release CO2 into the plasmaarrow_forwardMost carbon dioxide is transported in the blood a. dissolved within the plasma as carbon dioxide. b. in association with hemoglobin. c. as bicarbonate ion. d. in combination with oxygen.arrow_forwardGiven these ways of transporting carbon dioxide in the blood:(1) bicarbonate ions(2) combined with blood proteins(3) dissolved in plasmaChoose the arrangement that lists them in the correct order from largest to smallest percentage of carbon dioxide transported.a. 1,2,3 c. 2,3,1 e. 3,1,2b. 1,3,2 d. 2,1,3arrow_forward
- Which of the following will cause the largest increase in systemic arterial oxygen saturation in the blood?a. an increase in red cell concentration (hematocrit) of 20%b. breathing 100% O2 in a healthy subject at sea levelc. an increase in arterial PO2 from 40 to 60 mmHgd. hyperventilation in a healthy subject at sea levele. breathing a gas with 5% CO2, 21% O2, and 74% N2 at sea levelarrow_forwardWhich of the following is the most important factor regulating the respiratory rate? O A. Bicarbonate concentration of the blood. OB. Concentration of carbaminohemoglobin. OC. Partial pressure of carbon dioxide of the blood. O D. pH of systemic venous blood O E. Oxygen concentration of systemic venous bloodarrow_forwardWhich of the following statements is CORRECT? Select one: a. Reduction of atmospheric air pressure increases alveolar PO2. b. Reduction of plasma protein in blood increases alveolar PO2. c. Increase in ventilation increases alveolar PO2. d. Increase in metabolism increases alveolar PO2. e. Increase in the amount of hemoglobin increases arterial PO2arrow_forward
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