Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 36.10, Problem 1TYK
Summary Introduction
Introduction:
The control center of the lungs is present in the central nervous system. It is the collection of nuclei and is known as respiratory centers in mammals.
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If you hold your breath for a long time, body CO2 levels are likely to ____, and the pH of body fluids is likely to ____.a. increase; increaseb. decrease; increasec. increase; decreased. decrease; decrease
The carbonic acid equilibrium is shown below. Exhalation of CO2 by the lungs causes this equilibrium to shift to the ______, which causes the pH of the blood to _______.
H+ + HCO3- <=> H2CO3 <=> H2O + CO2
a) left; increase
b) left; decrease
c) right; decrease
d) right; increase
Which of the following statements is true for Bohr effect:
a.
Bohr effect describes carbon monoxide poisoning.
b.
Bohr effect prevents oxygen binding to hemoglobin.
c.
Bohr effect allows effective oxygen discharge in tissues due to higher acidity (decreased pH) than in lungs.
d.
Bohr effect allows effective oxygen discharge in tissues due to lower acidity (increased pH) than in lungs.
Chapter 36 Solutions
Principles of Biology
Ch. 36.1 - Prob. 1CCCh. 36.1 - Prob. 1TYKCh. 36.1 - Prob. 2TYKCh. 36.2 - Prob. 1BCCh. 36.2 - Prob. 1TYKCh. 36.2 - Which is false? Platelets are nucleated cells that...Ch. 36.3 - Prob. 1CCCh. 36.3 - Prob. 2CCCh. 36.3 - Prob. 3CCCh. 36.3 - Prob. 1TYK
Ch. 36.3 - Prob. 2TYKCh. 36.4 - Prob. 1CCCh. 36.4 - Prob. 1TYKCh. 36.4 - Prob. 2CCCh. 36.4 - Prob. 2TYKCh. 36.5 - Prob. 1TYKCh. 36.5 - Prob. 2TYKCh. 36.6 - Prob. 1TYKCh. 36.7 - Prob. 1CCCh. 36.7 - Prob. 1BCCh. 36.7 - Prob. 2CCCh. 36.7 - Prob. 3CCCh. 36.7 - Prob. 1TYKCh. 36.7 - Which of the following statements is false? The...Ch. 36.8 - Prob. 1TYKCh. 36.8 - Prob. 2TYKCh. 36.9 - Prob. 1CCCh. 36.9 - Prob. 1TYKCh. 36.9 - Prob. 2TYKCh. 36.10 - Prob. 1BCCh. 36.10 - Prob. 1TYKCh. 36.11 - Prob. 1TYKCh. 36.11 - Prob. 2TYKCh. 36.11 - Prob. 3TYKCh. 36 - Prob. 1TYCh. 36 - Prob. 2TYCh. 36 - Prob. 3TYCh. 36 - Prob. 4TYCh. 36 - Considering blood flow through a closed...Ch. 36 - Prob. 6TYCh. 36 - Prob. 7TYCh. 36 - Prob. 8TYCh. 36 - Prob. 9TYCh. 36 - Prob. 10TYCh. 36 - Discuss the difference between closed and open...Ch. 36 - Prob. 2CCQCh. 36 - Prob. 3CCQCh. 36 - Prob. 1CBQCh. 36 - List the components of the mammalian respiratory...
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- A partial pressure gradient of oxygen exists between ________. a. air and lungs b. lungs and metabolically active tissues c. air at sea level and air at high altitudes d. all of the abovearrow_forwardWhy do you think this change in levels occurs about the oxygen levels as blood passes through the lungs? ?arrow_forwardWhen a person hyperventilates, what happens to his or her blood pH? A person who is hyperventilating is often told to breathe into a paper bag. Why might this help to correct the pH imbalance?arrow_forward
- Which of the following will cause the largest increase in systemic arterial oxygen saturation in the blood?a. an increase in red cell concentration (hematocrit) of 20%b. breathing 100% O2 in a healthy subject at sea levelc. an increase in arterial PO2 from 40 to 60 mmHgd. hyperventilation in a healthy subject at sea levele. breathing a gas with 5% CO2, 21% O2, and 74% N2 at sea levelarrow_forwardWhich statement regarding carbon dioxide transport in the blood is true? HCO3- dissociates into CO2 and O2. H2CO3 dissociates into H+ and HCO3-. 93% remains dissolved in plasma as CO2. The chloride shift occurs when Cl- moves out of RBCs in exchange for HCO3-. 25% is converted to H2CO3 by carbonic anhydrase.arrow_forwardHenry climbed to the top of Mt. Apo. To celebrate, he drank a glass of whiskey. At higher altitude oxygen gas decreases. What do you expect to happen to Henry’s respiratory rate? Will this result to respiratory alkalosis or acidosis? Explain.arrow_forward
- The carbamino effect decrease's hemoglobin's affinity for _________ in response to increased ____________, while the Haldane effect decrease's hemoglobin's affinity for _________ in response to increased ____________. A oxygen, carbon dioxide; carbon dioxide, oxygen B carbon dioxide, oxygen; oxygen, carbon dioxide C oxygen, carbon dioxide; oxygen, pH D carbon dioxide, oxygen; carbon dioxide, pH E oxygen, carbon dioxide; protons, oxygenarrow_forwardOxygen is mainly carried through blood in what form?arrow_forwardHow can the quantity of oxygen that dissolved in the plasma of the blood be calculated?arrow_forward
- Individuals with cystic fibrosis produce thick mucus in the lungs, resulting in a higher-than-normal level of CO2 in the blood. What is the problem that results from higher-than-normal levels of COz in the blood? Please relate this to buffers in the blood and construct a clear problem statement.arrow_forwardYou are studying with a friend who is describing the Bohr effect. She tells you that in the lungs, hemoglobin binds oxygen and releases hydrogen ion; as a result, the pH increases. She goes on to say that in actively metabolizing muscle tissue, hemoglobin releases oxygen and binds hydrogen ion and, as a result, the pH decreases. Do you agree with her reasoning? Why or why not?arrow_forwardIf the volume of breath of a person is 450mL, how much of it is actively participating in the exchange of O2 and CO2?arrow_forward
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