Biochemistry: Concepts and Connections (2nd Edition)
2nd Edition
ISBN: 9780134641621
Author: Dean R. Appling, Spencer J. Anthony-Cahill, Christopher K. Mathews
Publisher: PEARSON
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Chapter 7, Problem 14P
Suppose your biking partner claims that hyperventilating at the bottom of steep hill climbs is a good idea because it will “increase the O2 saturation of the blood” and thereby provide “more O2 for leg muscles during the climb. “Hyperventilation reduces the CO2 content of blood. Given this fact, is hyperventilation likely to increase O2 delivery to muscles (as your biking partner claims) or not?
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Chapter 7 Solutions
Biochemistry: Concepts and Connections (2nd Edition)
Ch. 7 - Prob. 1PCh. 7 - Certain antibodies have been shown to bind only to...Ch. 7 - Antibodies raised against a macromolecular antigen...Ch. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10P
Ch. 7 - Prob. 11PCh. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Suppose your biking partner claims that...Ch. 7 - Prob. 15PCh. 7 - An antibody has been isolated that binds to...Ch. 7 - A typical relaxed sarcomere is about 2.3 m in...Ch. 7 - Each gram of mammalian skeletal muscle consumes...Ch. 7 - A few hours after the death of an animal, the...
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- After spending a day or more at high altitude (with an oxygen partial pressure of 75 torr), the concentration of 2,3- bisphosphoglycerate (2,3-BPG) in red blood cells increases. What effect would an increased concentration of 2,3-BPG have on the oxygen-binding curve for hemoglobin? Why would this adaptation be beneficial for functioning well at high altitude?arrow_forwardDaniel, the swimmer with the fastest time on the college swim team, routinely hyperventilates before a meet, as he says "to sock some more oxygen into my lungs so I can swim longer without having to breathe." "Furthermore, my heart won't have to adjust it's output". First of all, what basic fact about oxygen loading has Daniel forgotten (a lapse leading to false thinking)? Do you think that hyperventilation will provide him with enough oxygen to increase his endurance during the race?arrow_forwardAt rest the typical partial pressure of CO2 in arterial blood is around 40mmHg, and the ventilation rate is around 15 breathes per minute. During vigorous exercise you would expect the partial pressure of CO2 in the arterial blood to which would cause the ventilation rate to to compensate and restore homeostasis Increase; decrease Decrease; decrease Increase; increase Decrease; increasearrow_forward
- The diffusion coefficient of a gas is a constant and is not affected by disease states or treatment options. In contrast the other factors that determine gas diffusion through the respiratory membrane is affected by changes.Name the factors that can cause an increase in the diffusion rate through the respiratory membrane and provide detailed examples of conditions that will cause this increase.arrow_forwardHyperventilation will result in Chooe from the following: (A) loss of carbon dioxide molecules from the blood (B) decrease in the number of arterial hydrogen ions (C) rise in pH values (D) all of the abovearrow_forwardWhile a runner rests before a race, the hemoglobin in the blood returning to her heart is 75% saturated with O2 (that is, the blood is carrying about 75% of the maximum possible capacity to carry O2). While she is running, this percentage ... A. decreases because the partial pressure of O2 in her lung alveoli is reduced to below 40 mm Hg. B. decreases because the decreased PO2 in her muscles promotes O2 unloading in those tissues. C. stays the same because hemoglobin is usually 75% saturated with O2. D. increases because her muscles need more O2. E. increases because she is breathing harder.arrow_forward
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