Principles of Anatomy and Physiology
15th Edition
ISBN: 9781119329398
Author: Gerard J Tortora, Bryan Derrickson
Publisher: John Wiley & Sons Inc
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Chapter 23, Problem 27CP
Summary Introduction
To review:
The unloading of oxygen in hemoglobin is more as the blood moves via the capillaries of the active tissues like skeletal muscle during exercise as compared to rest.
Introduction:
Partial pressure is the vital factor, which is considered to determine the percent of oxygen saturation of the hemoglobin. When completely reduced hemoglobin converts into oxyhaemoglobin, it is known to be saturated completely.
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Chapter 23 Solutions
Principles of Anatomy and Physiology
Ch. 23 - What are the three basic steps involved in...Ch. 23 - What are the components of the respiratory system?Ch. 23 - Why is the respiratory zone important?Ch. 23 - 4. Compare the structure and functions of the...Ch. 23 - 5. What are the functions of the three...Ch. 23 - Prob. 6CPCh. 23 - Prob. 7CPCh. 23 - 8. Describe the structure of the bronchial tree.
Ch. 23 - Prob. 9CPCh. 23 - Prob. 10CP
Ch. 23 - Prob. 11CPCh. 23 - Prob. 12CPCh. 23 - Prob. 13CPCh. 23 - Prob. 14CPCh. 23 - Describe how alveolar surface tension, compliance,...Ch. 23 - Demonstrate the various types of modified...Ch. 23 - Prob. 17CPCh. 23 - What is the difference between a lung volume and a...Ch. 23 - How is minute ventilation calculated?Ch. 23 - Prob. 20CPCh. 23 - Prob. 21CPCh. 23 - How does the partial pressure of oxygen change as...Ch. 23 - What are the diffusion paths of oxygen and carbon...Ch. 23 - 24. What factors affect the rate of diffusion of...Ch. 23 - Prob. 25CPCh. 23 - What is the relationship between hemoglobin and P...Ch. 23 - Prob. 27CPCh. 23 - Prob. 28CPCh. 23 - How is the pontine respiratory group related to...Ch. 23 - Prob. 30CPCh. 23 - How does exercise affect the DRG?Ch. 23 - What structures develop from the laryngotracheal...Ch. 23 - What accounts for the decrease in lung capacity...Ch. 23 - Aretha loves to sing. Right now she has a cold, a...Ch. 23 - Ms. Brown has smoked cigarettes for years and is...Ch. 23 - The Robinson family went to bed one frigid winter...
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- How does hemoglobin help maintain the oxygen partial pressure gradient during gas transport in the body?arrow_forwardWhat is oxyhemoglobin? Where does it form?arrow_forwardThe ability of hemoglobin to bind oxygen decreases with decreasing oxygen concentration and also decreases with increasing carbon dioxide concentration. What effect do these phenomena have on the delivery of oxygen to tissues?arrow_forward
- in thalassemia, a type of anemia, the hemoglobin molecule is malformed. The malformation prevents hemoglobin from carrying and delivering the correct amount of oxygen to the cells. Which important physiological concept does this example illustrate?arrow_forwardWhy is oxygen efficiently transferred from hemoglobin in theblood to myoglobin in the muscles?arrow_forwardWhy is impairment of hemoglobin dangerous?arrow_forward
- In addition to O2 binding, changes in other chemical conditions can result in changes in hemoglobin structure and function. Increases in blood H+ result in oxygen binding curves for hemoglobin that are shifted to the right. The effect of H+ can be understood in terms of the equilibrium:H-Hb+ + O2 → Hb-O2 + H+How does the difference in pH in the lungs and tissues help hemoglobin do its job of delivering oxygen? Use the equilibrium equation in your argument.arrow_forward“The binding of oxygen to hemoglobin exhibits positive cooperativity.” Explain brieflyarrow_forwardWhy does hemoglobin have high affinity for oxygen in arterial blood and lower affinity in capillaries beds? Explain in terms of blood oxygen pressure.arrow_forward
- Which of the following is not true with regards to the oxygen-hemoglobin curve?arrow_forwardHow many molecules of oxygen can each hemoglobin molecule transport? What part of the hemoglobin binds the oxygen?arrow_forwardCarbon monoxide (CO) is a colorless, odorless gas produced during combustion of fuels (for example, by car engines and furnaces). The following graph depicts an oxygen dissociation curve in the absence and presence of varying amounts of carbon monoxide. Based on these results, in the presence of 20% CO, when PO2 is 90mmHg you should expect each hemoglobin molecule to have _____ molecule(s) of O2 bound a) 1 b) 2 c) 3 d) 4arrow_forward
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