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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Textbook Question
Chapter 46, Problem 8TYK
Oxygen enters the blood in the lungs because relative to alveolar air:
a. the CO2 concentration in the blood is high.
b. the CO2 concentration in the blood is low.
c. the O2 concentration in the blood is high.
d. the O2 concentration in the blood is low.
e. the process is independent of gas concentrations in the blood.
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Students have asked these similar questions
The time it takes for blood to pass through the capillaries of a pulmonary alveolus typically is less than 0.3 seconds. During this time, what will occur?
Select one:
a.
The blood plasma will be cleansed of its entire CO2 content and will be saturated with O2.
b.
An enzyme will catalyze the conversion of oxyhemoglobin to carboaminohemoglobin.
c.
Blood will pick up CO2 and O2 will be released to the alveolus.
d.
Blood will pick up O2 and CO2 will be released to the alveolus.I think this is C or D tell me the answer and why
Which of the following is NOT a determinant of gas exchange as described by Fick's Law?
a.
Steepness of the concentration gradient
b.
Number of ion channels in alveolar membrane
c.
Thickness of the alveolar membrane
d.
Permeability of the alveolar membrane to gases
e.
Surface area of the alveolar membrane
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 plasma
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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- 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 abovearrow_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_forwardAt 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 answerarrow_forward
- For each of the following structures, describe in detail how the structure allows for its function. A. Turbinates B. Larynx C. Trachea D. Bronchi E. Bronchioles F. Pleura G. Diaphragm H. Glottis I. Respiratory Surfaces (provide one example)arrow_forwardWHich of the following finding at the apex best explains why ventilation-perfusion ratios are higher at the apex than base of a normal upright lungs? a. Alveolar Po2 is higher b. Alveoli contains more elastin and less collagen c. Alveoli have less surfacant d. Change in pleural pressure with each breathe is higher e. Perfusion is lowerarrow_forwardVentilation of alveoli above the needs of metabolism tends to A. Increase the hydrogen ion concentration in the blood B. Increase the carbon dioxide concentration in the blood C. Leads to respiratory acidosis D. Decrease the carbon dioxide concentration in the blood E. Decrease the pH of the bloodarrow_forward
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