Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 34, Problem 9TYU
Summary Introduction
To explain:
The difference between fetal hemoglobin and adult hemoglobin, and its benefits.
Introduction:
Hemoglobin is a metalloprotein (iron + protein) found in RBCs (red blood cells), which provides red color to the RBCs. Hemoglobin helps in the oxygen transportation of the body. One molecule of hemoglobin can carry four molecules of oxygen.
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Explain how oxygen is carried in blood, including specifically the role of hemoglobin. Answer the same question with regard to car-bon dioxide transport
Watch this video (http://openstaxcollege.org/l/oxyblood) to see the transport of oxygen from the lungs tothe tissues. Why is oxygenated blood bright red, whereasdeoxygenated blood tends to be more of a purple color?
The hemoglobin of a human fetus differs from adult hemoglobin. Compare the dissociation curves of the two hemoglobins in the graph at right. Describe how they differ, and propose a hypothesis to explain the benefit of this difference.
Chapter 34 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 34.1 - How is the now of hemolymph through an open...Ch. 34.1 - Three-chambered hearts with incomplete septa were...Ch. 34.1 - Prob. 3CCCh. 34.2 - Prob. 1CCCh. 34.2 - Why is it important that the AV node delay the...Ch. 34.2 - Prob. 3CCCh. 34.3 - What is the primary cause of the low velocity of...Ch. 34.3 - Prob. 2CCCh. 34.3 - Prob. 3CCCh. 34.4 - Prob. 1CC
Ch. 34.4 - Prob. 2CCCh. 34.4 - Prob. 3CCCh. 34.4 - Prob. 4CCCh. 34.5 - Why is an internal location for gas exchange...Ch. 34.5 - After a heavy rain, earthworms come to the...Ch. 34.5 - MAKE CONNECTIONS Describe similarities in the...Ch. 34.6 - Prob. 1CCCh. 34.6 - Prob. 2CCCh. 34.6 - WHAT IF? If an injury tore a small hole in the...Ch. 34.7 - What determines whether O2, or CO2, undergoes net...Ch. 34.7 - How does the Bohr shift help deliver O2, to very...Ch. 34.7 - Prob. 3CCCh. 34 - Which of the following respiratory systems is not...Ch. 34 - Blood returning to the mammalian heart in a...Ch. 34 - Pulse is a direct measure of A. blood pressure. B....Ch. 34 - Prob. 4TYUCh. 34 - One feature that amphibians and humans have in...Ch. 34 - If a molecule of CO2 released into the blood in...Ch. 34 - Prob. 7TYUCh. 34 - DRAW IT Plot blood pressure against time for one...Ch. 34 - Prob. 9TYUCh. 34 - Prob. 10TYUCh. 34 - Prob. 11TYUCh. 34 - SYNTHESIZE YOUR KNOWLEDGE The diving bell spider...
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- EVOLUTION LINK Aquatic mammals such as whales and dolphins use lungs rather than gills for gas exchange. Propose a hypothesis to explain why.arrow_forwardTest Your Understanding 13. INTEREPT DATA Look at Figure 46-10b. How would strenuous muscle activity affect the oxygenhemoglobin dissociation curve? (Hint: How does muscular activity affect pH? See Chapter 40 if you need to review this concept.) Figure 46-10 Oxygen-hemoglobin dissociation curvesarrow_forwardCan you answer all the parts to this question regarding fish A: Describe countercurrent exchange in your own words. B: Describe concurrent exchange in your own words. C: Mammals have dead end sacs called “alveoli” and don’t have the super efficient countercurrent exchange system seen in fish. Why do you think countercurrent exchange is necessary for fish? (hint: think about the difference between where most mammals and fish live).arrow_forward
- Use the image to answer the question. The ability of oxygen to bind hemoglobin changes with altitude as shown. Which statement, if true, BEST explains this observation? A. The partial pressure of atmospheric oxygen decreases with altitude. B. The partial pressure of atmospheric oxygen increases with altitude. C. The partial pressure of atmospheric carbon dioxide decreases with altitude. D. The partial pressure of atmospheric carbon dioxide increases with altitude.arrow_forwardThe reason oxygen diffuses into the tissues seen in internal respiration? a. the temperature differences b. the pressure gradient or difference in partial pressure of oxygen in arterial blood and that in a metabolically active tissue c. the larger the partial pressure of the veins d. .the ability of hemoglobin to bind avidly with oxygenarrow_forwardLike typical fish, the crocodile icefish still need and use oxygen for metabolism. Explain why only fish that evolved to live in cold waters, like the crocodile icefish, could lose hemoglobin? ( unlike terrestrial organisms, marine organisms like fish use oxygen dissolved in water.)arrow_forward
- Describe how hemoglobin functions in the transport ofboth oxygen and carbon dioxide.arrow_forwardAn environment with an oxygen percent of 10% can quickly lead to unconsciousness and death. Assuming that the atmospheric pressure in this environment is 760 mmHg, hypothesize as to why such a low oxygen percent would be hazardous to human survival. Include Dalton’s law of partial pressures and the oxygen-hemoglobin dissociation relationship in your response.arrow_forwardDiscuss why it is advantageous for humans to producedifferent hemoglobins at different stages ofdevelopment.arrow_forward
- Discuss how the transition from water to land of vertebrates gradually changed the respiratory system that even allowed most birds to fly in high altitudes without experiencing hypoxia.arrow_forwardGive an explanation of the relationships between breathing and respiration. Is there a resemblance? Explain why you came to that conclusion.arrow_forwardWhich of the links below are true? a) The cysteine moieties in the beta globulin - nitric oxide transport b) The globe component in hemoglobin - carbon dioxide transport c) The home group in the hemoglobin - oxygen transport d) Carbonic anhydrase - carbon dioxide transportarrow_forward
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