Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 22, Problem 24RQ
Oxyhemoglobin forms by a
- hemoglobin and carbon dioxide
- carbonic anhydrase and carbon dioxide
- hemoglobin and oxygen
- carbonic anhydrase and oxygen
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With the Bohr effect, more oxygen is released to the tissues because:
a decrease in pH weakens the hemoglobin-oxygen bond
a decrease in pH strengthens the hemoglobin-oxygen bon
Oan increase in pH strengthens the hemoglobin-oxygen bond
an increase in pH weakens the hemoglobin-oxygen bond
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
When the blood passes through the lungs, CO₂ is expelled and the hemoglobin picks
up oxygen. Place the following steps in the correct order (1 = first thing to happen),
assuming that it is the decreased [CO₂] during exhalation that initiates the
transition.
Carbonic anhydrase works to restore the CO₂/bicarbonate equilibrium,
reducing the [H+]
The T-state is less stabilized.
Oxygen binds to the hemoglobin.
Protons dissociate from the hemoglobin.
Chapter 22 Solutions
Anatomy & Physiology
Ch. 22 - Visit this site...Ch. 22 - Watch this video...Ch. 22 - Watch this video...Ch. 22 - Which of the following anatomical structures is...Ch. 22 - What is the function of the conchae in the nasal...Ch. 22 - The fauces connects which of the following...Ch. 22 - Which of the following are structural features of...Ch. 22 - Which of the following structures is not part of...Ch. 22 - What is the role of alveolar macrophages? to...Ch. 22 - Which of the following structures separates the...
Ch. 22 - A section of the lung that receives its own...Ch. 22 - The ________ circulation picks up oxygen for...Ch. 22 - The pleura that surrounds the lungs consists of...Ch. 22 - Which of the following processes does atmospheric...Ch. 22 - A decrease in volume leads to a(n) ________...Ch. 22 - The pressure difference between the intra-alveolar...Ch. 22 - Gas flow decreases as ________ increases....Ch. 22 - Contraction of the external intercostal muscles...Ch. 22 - Which of the following prevents the alveoli from...Ch. 22 - Gas moves from an area of ________ partial...Ch. 22 - When ventilation is not sufficient, which of the...Ch. 22 - Gas exchange that occurs at the level of the...Ch. 22 - The partial pressure of carbon dioxide is 45 mm Hg...Ch. 22 - Oxyhemoglobin forms by a chemical reaction between...Ch. 22 - Which of the following factors play a role in the...Ch. 22 - Which of the following occurs during the chloride...Ch. 22 - A low partial pressure of oxygen promotes...Ch. 22 - Increased ventilation that results in an increase...Ch. 22 - Exercise can trigger symptoms of AMS due to which...Ch. 22 - Which of the following stimulates the production...Ch. 22 - The olfactory pits form from which of the...Ch. 22 - A full complement of mature alveoli are present by...Ch. 22 - If a baby is bom prematurely before type II cells...Ch. 22 - When do fetal breathing movements begin? around...Ch. 22 - What happens to the fluid that remains in the...Ch. 22 - Describe the three regions of the pharynx and...Ch. 22 - If a person sustains an injury to the epiglottis,...Ch. 22 - Compare and contrast the conducting and...Ch. 22 - Compare and contrast the right and left lungs.Ch. 22 - Why are the pleurae not damaged during normal...Ch. 22 - Describe what is meant by the term lung...Ch. 22 - Outline the steps involved in quiet breathing.Ch. 22 - What is respiratory rate and how is it controlled?Ch. 22 - Compare and contrast Daltons law and Henrys law.Ch. 22 - A smoker develops damage to several alveoli that...Ch. 22 - Compare and contrast adult hemoglobin and fetal...Ch. 22 - Describe the relationship between the partial...Ch. 22 - Describe three ways in which carbon dioxide can be...Ch. 22 - Describe the neural factors involved in increasing...Ch. 22 - What is the major mechanism that results in...Ch. 22 - Dining what timeframe does a fetus have enough...Ch. 22 - Describe fetal breathing movements and their...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What is oxyhemoglobin? Where does it form?arrow_forwardA 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_forwardReferring to the loading and unloading of oxygen from hemoglobin (as illustrated in the figure), which of the following statements is correct? Oxygen Dissociation Curve.png Group of answer choices When a person in ventilating at rest, 75% of hemoglobin is still oxyhemoglobin The percent saturation of hemoglobin is higher at higher partial pressures of oxygen A decrease in the pH of the blood would promote unloading oxygen from the hemoglobin All of these are correctarrow_forward
- Which of the following is the BEST definition for the Haldane effect? O Carbonic anhydrase converts CO2 into bicarbonate and hydrogen ions O Increased concentration of CO2 decreases hemoglobin affinity for oxygen Decreased PO2 increases hemoglobin affinity for CO2 CO2 binds to hemoglobin as oxygen concentration decreases Decreased pH decreases hemoglobin affinity for oxygemarrow_forwardWhich of the following gases readily combines with the haemoglobin of the blood? Carbon monoxide Methene Oxygen Nitrogen dioxidearrow_forwardWhen a person develops a fever, which of the following statements hemoglobin saturation are correct? - Modify the structure of hemoglobin and decrease its affernity for O2 - Can shift the O2-hemoglobin dissociation curve to the right - Decrease O2 unloading occurs in the tissue - Modify the structure of hemoglobin and increase its affernity for O2 - Can shift the O2 hemoglobin dissociation curve to the left - Enhance O2 unloading occurs in the tissuearrow_forward
- In 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_forwardWhich is true about the oxygen-hemoglobin dissociation curve? A decrease in pH decreases hemoglobin affinity for oxygen A decrease in temperature increases hemoglobin affinity for oxygen Oxygen unloads from hemoglobin when tissue PO2 decreases An increase in PCO2 decreases hemoglobin affinity for oxygen All of the abovearrow_forwardDescribe the structure of a hemoglobin molecule. Explain where O2 and CO2 are carried on a hemoglobin molecule?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_forwardWith the appearance of strong oxidizers in blood in erythrocytes one of the following substances is formed first of all: 1. carbhemoglobin 2. carboxyhemoglobin 3. oxyhemoglobin 4. methemoglobin 5. deoxyhemoglobinarrow_forwardThe ability of hemoglobin to bind oxygen decreases with decreasing oxygen concentration and also decreases with increasing carbon dioxide concentration. What effect do these phenomena have on the delivery of oxygen to tissues?arrow_forward
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