Chilean miners trapped in a poorly ventilated mine shaft likely experienced and elevated heart rate. The most probable reason (aside from being scared) for this increase is that carbon dioxide levels in the mine increased and oxygen levels increased. O both oxygen and carbon dioxide levels decreased. O both oxygen and carbon dioxide levels increased. carbon dioxide levels in the mine increased and oxygen levels decreased.

Chilean miners trapped in a poorly ventilated mine shaft likely experienced and elevated heart rate. The most probable reason (aside from being scared) for this increase is that carbon dioxide levels in the mine increased and oxygen levels increased. O both oxygen and carbon dioxide levels decreased. O both oxygen and carbon dioxide levels increased. carbon dioxide levels in the mine increased and oxygen levels decreased.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter39: The Respiratory System

Section: Chapter Questions

Problem 8RQ: Of the following, which does not explain why the partial pressure of oxygen is lower in the lung...

See similar textbooks

Similar questions

Breathing _______. a. ventilates the lungs b. draws air into airways c. expels air from airways d. causes reversals in pressure gradients e. all of the above
Of the following, which does not explain why the partial pressure of oxygen is lower in the lung than in the external air? Air in the lung is humidified; therefore, water vapor pressure alters the pressure Carbon dioxide mixes with oxygen Oxygen is moved into the blood and is headed to the tissues Lungs exert a pressure on the air to reduce the oxygen pressure.
Referring 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 correct
How will changes in arterial Po2 impact ventilation? Select the one most accurate response. Small changes in arterial Po2 will result in fine changes to VÊ in order to maintain relatively stable arterial Po2. O Arterial Po2 will not affect ventilation unless it drops below 60mmHg. O₂ cannot cross the blood/brain barrier, thus cannot interact with central chemoreceptors to have an impact on ventilation. O Breathing 100% O2 at atmospheric pressure will greatly reduce the urge to breathe.
Which of the folloqing statements about BPG and its effect on oxygen transport is NOT true? BPG binds more tightly to adult Hb than fetal Hb, thus facilitating the O2 transfer to the fetus. An initial reponse in adapting to higher altitude is increased BPG synthesis in erythrocites. This increase in BPG concentraton will shift the Hb saturation curve to a higher affinity position relative to its sea-level position, facilitating better O2 aborption and transport at higher altitudes. The presence of BPG in mammalian erythrocytes decreases Hb affinity for O2 BPG binds Hb in its central cavity in the R-state but not in the T-state, and in this way decreasing Hb affinity for O2 BPG binds Hb in its central cavity in the T-state but not in the R-state, and in this way decreasing Hb affinity for O2
can you explain this question in terms of chemoreceptors?
All 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 above
The sensors for the chemoreceptor reflex are located in the
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 tissues
Regulation of breathing rate Label the figure below to indicate how breathing rate is regulated. Not all labels will be used. Oxygen in blood is too high Oxygen in blood is too low Breathing rate increases Blood becomes too basic Carbon dioxide in blood is Carbon dioxide in blood is too high Carbon dioxide in blood is too low Thalamus detects change normal Blood becomes more acidic Blood flow to lungs increases Oxygen in blood is normal Medulla detects change Carbon dioxide concentration decreases Reset
To trigger bronchodilation, the PO2 in the blood should be low PO2 in the lungs should be high. PCO2 in the lungs should be high. pH levels in the red blood cells should be high. PCO2 in the blood should be low.
Which 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.