EBK HUMAN PHYSIOLOGY
8th Edition
ISBN: 9780134704227
Author: Silverthorn
Publisher: YUZU
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Chapter 18, Problem 28RQ
Summary Introduction
To determine: The maximum oxygen
Introduction: A molecule of hemoglobin is able to bind a total of four oxygen molecules. When the partial pressure of oxygen is 100 mm Hg, plasma of blood possesses 0.3 ml of oxygen per deciliter of blood, and at this value, the hemoglobin is 98% saturated.
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In a woman with body mass 70 kg blood quantity is 4.9 liters; hematocrit is 32%, the quantity of erythrocytes is 3.0*10^12/l, hemoglobin is 105 g/l color parameter is 1.0, the minimum osmotic resistance of erythrocytes is 0.38%NaCl; the maximum osmotic resistance of erythrocytes is 0.34%NaCl Such blood analises testifies first of all about:
A. the water excess in the organism
B. the lack of water in the organism
C. osmotic hemolysis of erythrocytes
D. chemical hemolysis of erythrocytes
E. the lack of iron in blood plasma
Figure 5 shows oxyhemoglobin dissociatlon curves at pH 7.2 and pH 7.4. Which of the
following is true at PO2 less than 40 mm Hg?
27.
% saturation af
haemogiobin
100
pH 7.4
80
60
pH 7.2
40 +
20
10
20
30
40
50
60
70
Po; (mm Hg)
Figure 5
A. Hemoglobin retains less O2 at pH 7.4 compared to pH 7.2.
B. Hemoglobin retains less O2 at pH 7.2 compared to pH 7.4.
C. The release of O2 from hemoglobin is not influenced by the production of CO2.
D. At pH 7.2 where CO2 production is less than pH 7.4, hemoglobin releases less O2.
Which of the following is the concentration of hemoglobin-bound oxygen in the blood when the heme is fully saturated?
8500 uM
8630 uM
2200 uM
8800 uM
Chapter 18 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 18.1 - Cellular metabolism review: which of the following...Ch. 18.1 - Why doesnt the movement of oxygen from the alveoli...Ch. 18.1 - If nitrogen is 78% of atmospheric air, what is the...Ch. 18.1 - At the summit of Mt. Everest, an altitude of 8850...Ch. 18.1 - Prob. 5CCCh. 18.1 - If alveolar ventilation increases, what happens to...Ch. 18.1 - True or false? Plasma with a PO2 of 40 mm Hg and a...Ch. 18.1 - A saline solution is exposed to a mixture of...Ch. 18.2 - Can a person breathing 100% oxygen at sea level...Ch. 18.2 - What effect does hyperventilation have on the...
Ch. 18.2 - A muscle that is actively contracting may have a...Ch. 18.2 - How would an obstruction of the airways affect...Ch. 18 - List five factors that influence the diffusion of...Ch. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - Describe the structure of a hemoglobin molecule....Ch. 18 - Prob. 5RQCh. 18 - Describe the chemoreceptors that influence...Ch. 18 - Describe the protective reflexes of the...Ch. 18 - What causes the exchange of oxygen and carbon...Ch. 18 - List five possible physical changes that could...Ch. 18 - Concept map: Construct a map of gas transport...Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Prob. 13RQCh. 18 - Define hypoxia, COPD, and hypercapnia.Ch. 18 - Why did oxygen-transporting molecules evolve in...Ch. 18 - Draw and label the following graphs: a. the effect...Ch. 18 - Prob. 17RQCh. 18 - Prob. 18RQCh. 18 - Create reflex pathways (stimulus, receptor,...Ch. 18 - Prob. 20RQCh. 18 - Which person carries more oxygen in his blood? a....Ch. 18 - What would happen to each of the following...Ch. 18 - In early research on the control of rhythmic...Ch. 18 - Prob. 24RQCh. 18 - Prob. 25RQCh. 18 - Prob. 26RQCh. 18 - Prob. 27RQCh. 18 - Prob. 28RQCh. 18 - Adolph Fick, the nineteenth-century physiologist...Ch. 18 - Prob. 30RQ
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- What is the approximate % saturation of hemoglobin with CO exposure? (50% CO)?arrow_forwardFrom the diagram, identify what each letter represents: A = B = C =arrow_forwardYou are counting WBC using a hemocytometer, consider that you use only 2 squares (2 W) in your counting process, the volume correction factor for counting WBC per 1 mm3 is: O 2.5 50 O 10 5.arrow_forward
- Changes in Blood Hematocrit After 2 Month Acclimatization to High Altitude % 100 90 80 70 60 50 Low altitude 40 30 High altitude 20 10 Hematocrit Changes in Blood Hemoglobin After 2 Month Acclimatization to High Altitude g/100 ml 20 16 12 8 Low altitude High altitude 4 Hb 1. What are the average hematocrit values (%) at low altitude and then after the subject trained at high altitude for 2 months? 2. Did average hematocrit increase, decrease, or not change after training at high altitude for 2 months? 3. What are the average hemoglobin values (g/100 ml) at low altitude and then after the subject trained at high altitude for 2 months?arrow_forwardOxyhemoglobin formation is promoted at the while deoxyhemoglobin formation is promoted at the tissues). (lungs/ systemic tissues). (lung/ systemic the most important factor determining how much 02 binds to hemoglobin is the Bodind 0arrow_forwardA plasma increase of which of the following will cause a leftward shift of the hemoglobin saturation curve? O pH O PACO2 O 2,3 BPGarrow_forward
- Place a single word into each sentence to make it correct saturation The relationship between hemoglobin and Po2 is shown by an oxyhemoglobin dissociation curve. rises lowers At low Po2, the curve slowly load When the curve rises there is a rapid increase in oxygen loading. deficiency When the first heme group binds a molecule of oxygen, changes conformation to accept a second carbon dioxide Oxygen. Eventually at high Po2 levels, the hemoglobin approaches 100 % saturation and can not hemoglobin more oxygen.arrow_forwardFill in the blank: Hemoglobin S moves more slowly toward the positive electrode than hemoglobin A on an electrophoresis gel at pH 9.2, because hemoglobin S has ____ __________ negative charges than hemoglobin A.arrow_forwardTable 3: Effect of Altitude on Hct and Hb Low Altitude High Altitude Length of Whole Length of Length of Length of Hb Packed Hb Whole Blood Packed RBc (g/100 Blood RBC (g/100 Column Column Hematocrit ml Column Column Hematocrit ml Subject (mm) (mm) (%) blood) (mm) (mm) (%) blood) Subject 1 50 23 14.5 49 25 17.4 Subject 2 50 21 14.5 50 23 17.4 Subject 3 51 22 14.5 49 25 17.4 Average 0.0 0.0 EQUATIONS (FX) Use these formulas for making your calculations. Hematocrit Divide the length of the packed RBC column by the length of the total blood column and then multiply by 100. Round to the nearest whole number. Averages Add the values from the three trials (or subjects); divide by three. Round to the nearest whole number for Hematocrit and to the nearest tenth for Hemoglobin.arrow_forwardI’m not sure how this will increase or decrease oxygen concentration can you please help?arrow_forwardAccording to Figure 17.10b, at a pH of 7.4, how much hemoglobin is unloaded in the tissue? 12% 24% 56% 72% 95%arrow_forwardConsider oxyhemoglobin in hard-working tissues. Using the graph below, what is the percentage of oxyhemoglobin when the PO2 is 40mmHg? 100% 809% 60% 40% 20% 0% 10 20 30 40 50 60 70 80 90 100 Po, (mm Hg) OXYHEMOGLOBIN PERCENTAGE 8- 8-arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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