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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Question
Chapter 36, Problem 10TY
Summary Introduction
Introduction:
Hemoglobin is a molecule in red blood cells that carry the oxygen in the blood. It carries oxygen from the lungs to the whole body and returns carbon dioxide to the lungs.
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Which of the following statements about oxygen transport is TRUE.
Increases in temperature and decreases in pH cause myoglobin to release
oxygen to improve delivery to the hemoglobin in muscles.
A molecule of myoglobin has higher oxygen binding capacity than a molecule of
hemoglobin.
Myoglobin has a higher oxygen affinity than does hemoglobin.
Fetal hemoglobin has a lower affinity for oxygen than maternal hemoglobin,
which makes it better suited to extract oxygen from the maternal circulation.
Myoglobin would be an inappropriate carrier of oxygen to peripheral tissues
because:
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Myoglobin would not release oxygen at the oxygen pressures found in muscle
tissue.
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transport.
Myoglobin is only soluble in plasma.
Two of the above.
Chemical and physical properties of gases are important factors in the evolution and
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gases and cardiorespiratory systems is FALSE?
When a frog sits in anoxic water, they can get enough oxygen by breathing air.
Under these conditions, it makes sense to reduce the blood flow through the
skin to reduce loss of oxygen from the blood to the water.
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sufficient oxygen and in doing so, get rid of too much carbon dioxide, causing an
alkalosis (increase in blood pH).
Because the ratio of oxygen to carbon dioxide is higher air than water, air
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regulated to get rid of carbon dioxide.
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_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_forwardWhat happens to the carbon dioxide produced by humans during cellular respiration? It is transported in the erythrocytes as carbonic acid. It is simply dissolved in the plasma. It is bound to hemoglobin. It is converted to bicarbonate ions.arrow_forward
- Trace the pathway of respiration from the tissue cells after biological processes and back to it. Unloading of Oxygen to Cells Formation of carbonic acid Inhalation Expiration…arrow_forwardAfter your exercise routine at the gym, you sit with friends drinking a glass of water to cool off. Select a single word from list and place into each blank to make it correct. Not all terms will be used. 40 mmHg right increases As you cool off, metabolism at the skeletal muscles decreases, and the oxygen saturation curve shifts affinity for oxygen because hemoglobin's . Under these conditions, hemoglobin 20% is likely to release oxygen. decreases At the same time, the partial pressure of oxygen at the systemic capillaries changes from about to less Carbon dioxide released from the skeletal muscle cells during vigorous exercise can make the blood slightly more acidic. This results in hemoglobin having a affinity. left oxygen saturation or oxygen higher 40% 20 mmHg lower morearrow_forwardWith 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 bondarrow_forward
- Identify the factors that directly favor the unloading of oxygen from hemoglobin in the blood near metabolically active tissues. an increase in blood temperature near the tissues a decrease in blood pH near the tissues the presence of a pressure gradient for oxygen O an exchange of ions in the erythrocytesarrow_forwardAll of the following factors increase hemoglobin's affinity for oxygen EXCEPT: Increased temperature Increased pH Decreased pCO2 Decreased 2,3-DPG All of the above increase hemoglobin's affinity for oxygen The conduction zone: Question 7 options: participates in some gas exchange secretes mucus which is moved down into the respiratory zone of the lungs dries moist air as it moves into the respiratory zone equilibrates incoming air to body temperature none of the above are correct The respiratory membrane for gas exchange includes (select the best answer): Question 8 options: Capillary endothelial cells Type I alveolar cells Type II alveolar cells A and B above A and C abovearrow_forwardWhich of the following statements is correct of BOTH haemoglobin and myoglobin? Acidic conditions increase the affinity for oxygen. The iron atom of the heme prosthetic group is bound to nitrogen atoms at five of six coordination sites. Four oxygen molecules bind to each subunit. Quaternary structure is found in both haemoglobin and myoglobin. Both haemoglobin and myoglobin show the same oxygen binding affinity at differentarrow_forward
- Carbon monoxide binds to hemoglobin and prevents it from binding properly with oxygen. Carbon monoxide causes. a decreased arterial blood PO2 increased ventilation due to activation of chemoreceptors that detect low plasma PO2 an increase in arterial blood PCO2 less total oxygen to be delivered to tissuesarrow_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_forwardIn carbon monoxide (CO) poisoning, CO binds to the heme of hemoglobin much tighter than oxygen (O2). What effect will this have on the ability of the tissues to get oxygen? Group of answer choices There will be no effect. CO will deliver oxygen to the tissues. Hemoglobin will bind more O2 and deliver more oxygen to the tissues. More hemoglobin will be produced to deliver oxygen to the tissues. Hemoglobin will bind less O2 and deliver less oxygen to the tissues.arrow_forward
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