Question

A. . Hyperpnea would result in ___________________________ within the blood. an increase in both Pressure (oxygen) and Pressure (carbon dioxide) 2. Decreased Pressure (carbon dioxide) results in an increase in blood pH levels. Both of these conditions result in a shift of the oxygen-hemoglobin dissociation curve to the ______________________. This shift _______________ hemoglobin’s affinity for oxygen. select 3. Increased levels of 2,3 BPG occur in response to decreased blood pH levels. With all other variables unchanged, an increased concentration of 2,3 BPG in the blood would _____________________. select 4. Using the graph provided, determine the correct oxygen partial pressure associated with the classification of "high altitude." select 5. The altitude of Kabul, Afghanistan is approximately 6000 feet. What is the approximate alveolar oxygen partial pressure found here? select 6. Under normal conditions, the alveolar oxygen partial pressure is ______________________ than the atmospheric oxygen partial pressure. select 7. Within the Tibetan highlander population, genetic variation has been found to determine relative oxygen-hemoglobin saturation levels. Individuals within this population may be homozygous for either the low oxygen saturation gene or the high oxygen saturation gene. Individuals may also be heterozygous, carrying one low and one high oxygen saturation gene. Based on this information, individuals within the population carrying __________________________ alleles are expected to demonstrated a physiological advantage for survival. select 8. No genetic differences were found among the Andean population in either oxygen-hemoglobin saturation levels, nor hemoglobin concentrations. However, this group as a whole displayed higher hemoglobin concentration levels than their lower altitude neighbors. The most accurate explanation for this finding is that individuals constantly exposed to lower atmospheric partial pressures for oxygen would have a physiologic response which would _______________________. select

• • B. Oxygen molecules bind ___________________ of the hemoglobin.

    select

    selectneither to the heme nor to the globin regionspecifically to the globin regioneither to the heme or to the globin regionspecifically to the heme region
  • 2.

    A single hemoglobin displaying a saturation level of 75% would be bound to ___________________________

    select

• C. ___________________ is used to sustain metabolic activities within the cells, and ________________ is produced as a result of these activities.

  select

  selectCarbon dioxide; carbon dioxideCarbon dioxide; oxygenOxygen; carbon dioxideOxygen; oxygen
• 2.

  Under normal conditions, the partial pressure of carbon dioxide within the tissues is _____________ than the partial pressure of carbon dioxide within the systemic capillaries.
  

  select

• The unloading of oxygen at the tissues results in the formation of ______________________ . This configuration of hemoglobin _____________________ carbon dioxide.

• D. The inspiratory muscles ____________ during normal exhalation resulting in a(n) __________________ in the thoracic volume.

  select

  selectrelax; increasecontract; increaserelax; decreasecontract; decrease
• 2.

  The intrapulmonary pressure is _______________ than the atmospheric pressure during exhalation.

Answer 1

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A. . Hyperpnea would result in decrease in the oxygen demand an increase in oxygen pressure and decrease in carbon dioxide pressure within the blood.

2. Decreased Pressure (carbon dioxide) results in an increase in blood pH levels. Both of these conditions result in a shift of the oxygen-hemoglobin dissociation curve to the _left...

. This shift increases _ hemoglobin’s affinity for oxygen.

3. Increased levels of 2,3 BPG occur in response to decreased blood pH levels. With all other variables unchanged, an increased concentration of 2,3 BPG in the blood would result in a shift of oxygen haemoglobin dissociation curve to the right and enhancing the unloading of oxygen to tissue.

4. Using the graph provided, determine the correct oxygen partial pressure associated with the classification of "high altitude." 112 mm of Hg

5. The altitude of Kabul, Afghanistan is approximately 6000 feet. What is the approximate alveolar oxygen partial pressure found here.. Is 85 mm of Hg.

Under normal conditions, the alveolar oxygen partial pressure is always lower than the atmospheric oxygen partial pressure.

7. Within the Tibetan highlander population, genetic variation has been found to determine relative oxygen-hemoglobin saturation levels. Individuals within this population may be homozygous for either the low oxygen saturation gene or the high oxygen saturation gene. Individuals may also be heterozygous, carrying one low and one high oxygen saturation gene. Based on this information, individuals within the population carrying homozygous high oxygen saturation population alleles are expected to demonstrated a physiological advantage for survival.

8. No genetic differences were found among the Andean population in either oxygen-hemoglobin saturation levels, nor hemoglobin concentrations. However, this group as a whole displayed higher hemoglobin concentration levels than their lower altitude neighbors. The most accurate explanation for this finding is that individuals constantly exposed to lower atmospheric partial pressures for oxygen would have a physiologic response which would _increase the cumulative of red blood cells..