Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology: Concepts & Connections (9th Edition)
9th Edition
ISBN: 9780134606125
Author: Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan, Jane B. Reece
Publisher: PEARSON
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Chapter 22, Problem 12TYK
Summary Introduction
To explain:
The reason of CO being a deadly gas irrespective of the fact that it is a colorless, odorless gas found in furnace and automobile engine exhaust and cigarette smoke. CO binds to hemoglobin 210 times more tightly than does O2. CO also bonds with an electron transport protein and disrupts
Concept introduction:
Carbon monoxide is an odorless, tasteless and colorless gas with less density than air. It consists of one atom of carbon and one atom of oxygen connected with a triple bond with a molecular mass of
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Which of the following is TRUE of carbon monoxide poisoning?
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Chapter 22 Solutions
Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology: Concepts & Connections (9th Edition)
Ch. 22 - Complete the following concept map to review some...Ch. 22 - Label the parts of the human respiratory system.Ch. 22 - Prob. 3TYKCh. 22 - Countercurrent gas exchange in the gills of a fish...Ch. 22 - Prob. 5TYKCh. 22 - Prob. 6TYKCh. 22 - Prob. 7TYKCh. 22 - Prob. 8TYKCh. 22 - Prob. 9TYKCh. 22 - What are two advantages of breathing air, compared...
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- The bacteria that cause gangrene (Clostridium perfringens) are anaerobic microorganisms that do not thrive in the presence of O2. Hyperbaric oxygenation (HBO) treatment places a person in a chambercontaining O2 at three to four times normal atmospheric pressure.Explain how HBO helps treat gangrene.arrow_forwardHemoglobin is essential for oxygen transmission why?arrow_forwardAnaerobic respiration involves exchange of gases between organisms and their environment. True or False?arrow_forward
- Carbon monoxide (CO) is a colourless, odourless gas that result from the burning of hydrocarbons, such as in a poorly functioning furnace or vehicle emissions. CO can bind with hemoglobin to form carboxyhemoglobin. Hemoglobin's affinity for CO is 200 times greater than its affinity for oxygen. The initial symptoms of carbon monoxide poisoning are flu-like, such as dizziness, headache and vomiting. However, when left unchecked, CO poisoning can result in unconsciousness, loss of blood flow to the vital organs and, eventually, death. (Source: Bleecker, M.L. (2015). Carbon Monoxide Intoxication. Handbook of Clinical Neurology. Elsevier B.V.) 5. Name the gases normally carried by hemoglobin in the body. Using your knowledge of the circulatory and respiratory systems, provide a possible explanation for the symptoms of carbon monoxide poisoning.arrow_forwardIn addition to O2 binding, changes in other chemical conditions can result in changes in hemoglobin structure and function. Increases in blood H+ result in oxygen binding curves for hemoglobin that are shifted to the right. The effect of H+ can be understood in terms of the equilibrium:H-Hb+ + O2 → Hb-O2 + H+How does the difference in pH in the lungs and tissues help hemoglobin do its job of delivering oxygen? Use the equilibrium equation in your argument.arrow_forwardHow does the administration of 100 percent oxygen save a patient from carbon monoxide poisoning? Why wouldn’t giving carbon dioxide work?arrow_forward
- Respiratory droplets and aerosols are the same thing. Question 19 options: a) True b) Falsearrow_forwardHaemoglobin is also known as?arrow_forwardCrocodiles can use virtually 100% of the oxygen in its blood, whereas humans can extract only about 65% of the oxygen in their blood. Crocodile hemoglobin (Hb) binds HCO3, rather than 2,3-bisphosphoglycerate (BPG), when in the T-state. Which of the following best explains why HCO3¯ in the crocodile works better than 2,3-BPG in humans to help the Hb to release more of its bound oxygen? Crocodile Hb binds more oxygen than human Hb, and so the crocodile has more oxygen available than humans do. The [HCO3] varies with the amount of oxygen used, whereas the [BPG] in human erythrocytes is constant regardless of need. Humans require their hemoglobin to be sensitive to [BPG] in order for HbF (fetal Hb) to have a higher affinity for oxygen than maternal Hb. Since crocodile Hb binds HCO3, the HCO3 will not be available to bind to H+ (Bohr protons), and so more oxygen will be released to the tissues. Crocodiles are cold-blooded and so do not need as much oxygen as humans; this is why they can…arrow_forward
- The purpose of pulmonary ventilation is to facilitate the release of the waste product from the body while allowing axygen to enter the body. hydrogen carbon monoxide of 3 nitrogen carbon dioxide Oxygenarrow_forwardCarbon particles from smoke can cause a person to have a persistent cough. How does the respiratory system normally clean out debris. How does smoke affect this process? Be specific.arrow_forwardWhat statement about hemoglobin's integrated transport of oxygen, carbon dioxide and protons is FALSE? Question 26 options: Lower pH leads to more oxygen being released into the tissues Protons can bind hemoglobin at a variety of sites, including histidine side chains. Proton binding stabilizes the R-form of hemoglobin. Hemoglobin binds bicarbonate and transports it from the tissues to the lungs Carbon dioxide binds to hemoglobin in the tissues and gets transported back to the lungsarrow_forward
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