Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Textbook Question
Chapter 34.7, Problem 1CC
What determines whether O2, or CO2, undergoes net diffusion into or out of capillaries? Explain.
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a) How much more O2 can be transported by the blood when erythrocytesleave the lungs? Consider that a normal adult has a concentration of 15 g hemoglobin/100 mL of bloodand that the hemoglobin is 98% saturated with O2 at the usual pO2 of 100 torr in the lung at sea level.
b) On the basis of the graph, explain how myoglobin facilitates the diffusion of O2 through muscle cells. Would myoglobin be effective as an O2-transport protein in cells of other tissues? Explain.
Arrange the following in the ascending ( small to large) order of the percentage of dissolving CO2.
1 plasma
2 hemoglobin
3 cytoplasm of RBC
a) 2,3,1
b)1,3,2,
c)2,1,3
d)3,2,1
e)1,2,3
f) 3,1,2
Would you expect the concentration of HCO3 to be higher in blood plasma taken from a systemic artery or a systemic vein?
Chapter 34 Solutions
Campbell Biology in Focus
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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- Do the following conditions cause hemoglobin to release more O2 to the tissues or to absorb more O2?(a) Raising the temperature(b) Increased production of CO2(c) Increasing the H+ concentrationarrow_forwardTwo of the body’s important fluid compartments are those of the interstitial fluid and plasma. How does the liver’s production of plasma proteins interact with those compartments to illustrate the general principle of physiology, Controlled exchange of materials occurs between compartments and across cellular membranes?arrow_forwardin 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_forward
- How is Co2 transporter in the body and write the equation that demonstrates this ?arrow_forwardIn a resting person, how many O2 molecules are attached to each hemoglobin molecule, on average, in blood in the pulmonary arteries? In blood in the pulmonary veins?arrow_forwardExplain how the arterial PO2 and the oxygen content of whole blood are affected by (a) hyperventilation, (b) breathing from a tank containing 100% oxygen, (c) anemia (low red blood cell count and hemoglobin concentration), and (d) high altitude.arrow_forward
- Make a list of the different physiological equations: Fick equation for oxygen diffusion = Simple estimation for heart rate max = Equation to convert absolute VO2 (Liters of O2/min) to relative VO2 (ml/kg/min) =arrow_forwardWhy do these aggregates not form when hemoglobin S is oxygenated?arrow_forwardReferring to the figure shown, the movement of glucose is from the lumen of the duodenum through an interstitial cell, out to the extracellular fluid, and into a capillary. What would happen if the action of the Na+–K+ pumps was reduced? A)The rate of flow of glucose into the interstitial cells would be increased. B)The direction of flow of glucose would be reversed. C)The rate of flow of glucose into the interstitial cells would be reduced. D)Nothing would differ: the movement of glucose would be the same as before the reversal.arrow_forward
- Increased partial pressure of O2 in plasma from 50mmHg to 100 mmHg leads to the following: A) 2 fold increase of O2 carried in blood B) 2 fold increase of O2 bound to hemoglobin C) 2 fold increase of dissolved oxygenarrow_forwardWhat does an erythrocyte gain by the loss of its nucleus and organelles? What three cellular processes can it no longer engage in due to the loss of its (a) nucleus and (b) mitochondria?arrow_forwardExplain how oxygen and carbon dioxide are transported in the blood. How does the means of transport relate to the solubility and chemical reactivity of these gases in plasma?arrow_forward
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