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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Textbook Question
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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- Explain what a partial pressure gradient is and how such gradients figure in gas exchange.arrow_forwardExplain why, in a healthy person at sea level, increasing the alveolar (and therefore the arterial) PO2 either by hyperventilating or by breathing 100% oxygen does not appreciably increase the total content of oxygen in the blood?arrow_forwardWhich of the folloqing statements about BPG and its effect on oxygen transport is NOT true? BPG binds more tightly to adult Hb than fetal Hb, thus facilitating the O2 transfer to the fetus. An initial reponse in adapting to higher altitude is increased BPG synthesis in erythrocites. This increase in BPG concentraton will shift the Hb saturation curve to a higher affinity position relative to its sea-level position, facilitating better O2 aborption and transport at higher altitudes. The presence of BPG in mammalian erythrocytes decreases Hb affinity for O2 BPG binds Hb in its central cavity in the R-state but not in the T-state, and in this way decreasing Hb affinity for O2 BPG binds Hb in its central cavity in the T-state but not in the R-state, and in this way decreasing Hb affinity for O2arrow_forward
- You notice a significant increase in your rate of breathing following a hard set of bench press. This is likely. Hyperventilation to compensate for the acute increase in lactic acid Hypoventilation to compensate for the acute increase in lactic acid O Hyperventilation to increase the levels of blood CO2. Hypoventilation to compensate for the muscular production of biocarbonate O Hyperventilation to compensate for the muscular production of bicarbonatearrow_forwardO E-If answers (1), (2), (3) and (4) are TRUE Which of the following is NOT true about the liver lobule? * (1) Bile canaliculi transport bile towards the bile ducts located at the corners of the liver lobule. (2) Sinusoidal capillaries drain into the central vein. (3) Liver lobules are capable of producing plasma proteins such as albumin. (4) The portal arteriole takes blood to the liver lobule, while the portal venule takes blood away from the liver lobule. O A - If answers (1), (2) and (3) are TRUE B - If answers (1) and (3) are TRUE O C- If answers (2) and (4) are TRUE O D- If only answer (4) is TRUE O E- If answers (1), (2), (3) and (4) are TRUE Which of the following is NOT true with regards the oxygen-hemoglobin dissociation curve? * 27°C ere to searcharrow_forwardWhich of the following is not true with regards to the oxygen-hemoglobin curve?arrow_forward
- 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_forwardWhat change (increase or decrease) in arterial Pco2 leads to an increase in minute ventilation? Increase During normal resting conditions, arterial Pco2 is 40 mm Hg and minute ventilation is approximately 6.5 L/min. If the arterial Pco2 increased by 4 mm Hg. to what approximate value would minute ventilation increase? [Select] During normal resting conditions, arterial Poz is 100 mm Hg and minute ventilation is approximately 6.5 L/min. If the arterial Po2 decreased by 4 mm Hg, to what approximate value would minute ventilation increase? [Select] [Select] 5 L/min 6.6 L/min 9 L/min 12 L/min 15 L/min Nextarrow_forwardChoose only one correct answer from all of these answers and explainarrow_forward
- Daniel, 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_forwardGraph the relationship between hemoglobin–O2 saturation and the partial pressure of O2 in the blood. What is the functional significance of the shape of the O2–hemoglobin dissociation curve? What factors affect the shape of the curve?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_forward
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