1
BIO
BIO 669 QUIZ 5 EXAM (NEW 2024/ 2025
B B B B B B B
UPDATE) QUESTIONS & VERIFIED ANSWERS
B B B B B
| GRADE A| 100% CORRECT B B B B
what happens when the lungs lose elasticity? -
b b b b b b b
b ANS ✓compliance goes up and allows for easier expansion, but leads to reduced r
b b b b b b b b b b b b b
ecoil into a smaller space
b b b b
(increasing chest space and air way volume)
b b b b b b
Where is airway resistance the highest? - ANS ✓in nasal passages
b b b b b b b b b b
what has the second highest airway resistance? - ANS ✓pharynx
b b b b b b b b b
what occurs to the body with widespread acidemia or widespread insufficie
b b b b b b b b b b
ncy? - b
b ANS ✓increased bronchi constriction= more difficult to breath and need to incre
b b b b b b b b b b b
ase respiratory effort
b b
IE. COPD patient gasping for air and fighting harder to breath.
b b b b b b b b b b
BIO 669
b
, 2
BIO
what are the 4 steps of ventilation of the lungs? -
b b b b b b b b b b
b ANS ✓1. ventilation of air in and out of lungs
b b b b b b b b b
2. diffusion of oxygen from alveoli out into the capillary blood
b b b b b b b b b b
3. perfusion of systemic capillaries with O2 blood
b b b b b b b
4. diffusion of O2 from systemic capillaries into the cell.
b b b b b b b b b
What is barometric pressure? -
b b b b
b ANS ✓measure of pressure of all the mixture of gases on a given chamber (aside f
b b b b b b b b b b b b b b b
rom water pressure)
b b
what do you have more of, perfusion of ventilation? - ANS ✓perfusion
b b b b b b b b b b b
How is saturation determined? -
b b b b
b ANS ✓the average of O2 that is binded to the over all hemoglobin
b b b b b b b b b b b b
what happens to saturation when pressure rises? - ANS ✓it rises.
b b b b b b b b b b
what are examples of interactions that decrease the affinity in the binding
b b b b b b b b b b b b
of O2 to hemoglobin? -
b b b b
b ANS ✓increased H+ ion, drop in pH, high CO2, increased temp, 23 DPG
b b b b b b b b b b b b
where is 23 DPG made? - ANS ✓the Liver
b b b b b b b b
BIO 669 b
, 3
BIO
What is a right shift? -
b b b b b
b ANS ✓the offloading of hemoglobin in the decrease in affinity for O2
b b b b b b b b b b b
why does hemoglobins affinity increase at the area of the lungs? -
b b b b b b b b b b b
b ANS ✓there is a lower temperature, rise of pH that is relative to the systemic circ
b b b b b b b b b b b b b b b
uit, and a low level in carbon dioxide (due to alveolar diffusing CO2
b b b b b b b b b b b b
what happens when you go up to a higher altitude? - ANS ✓Left shift-
b b b b b b b b b b b b b
b increased breathing rate due to less o2 to decrease CO2= alkalosis event
b b b b b b b b b b b
What does 2.3 DPG do? -
b b b b b
b ANS ✓curves the shift back, allowing O2 to be released from the tissues.
b b b b b b b b b b b b
(used in times of altitude sickness)
b b b b b
How is CO2 transported in the blood? -
b b b b b b b
b ANS ✓Dissolved in plasma, bound to hemoglobin/ protein, or as bicarbonate ion
b b b b b b b b b b b
s in plasma
b b
BIO 669 b
BIO
BIO 669 QUIZ 5 EXAM (NEW 2024/ 2025
B B B B B B B
UPDATE) QUESTIONS & VERIFIED ANSWERS
B B B B B
| GRADE A| 100% CORRECT B B B B
what happens when the lungs lose elasticity? -
b b b b b b b
b ANS ✓compliance goes up and allows for easier expansion, but leads to reduced r
b b b b b b b b b b b b b
ecoil into a smaller space
b b b b
(increasing chest space and air way volume)
b b b b b b
Where is airway resistance the highest? - ANS ✓in nasal passages
b b b b b b b b b b
what has the second highest airway resistance? - ANS ✓pharynx
b b b b b b b b b
what occurs to the body with widespread acidemia or widespread insufficie
b b b b b b b b b b
ncy? - b
b ANS ✓increased bronchi constriction= more difficult to breath and need to incre
b b b b b b b b b b b
ase respiratory effort
b b
IE. COPD patient gasping for air and fighting harder to breath.
b b b b b b b b b b
BIO 669
b
, 2
BIO
what are the 4 steps of ventilation of the lungs? -
b b b b b b b b b b
b ANS ✓1. ventilation of air in and out of lungs
b b b b b b b b b
2. diffusion of oxygen from alveoli out into the capillary blood
b b b b b b b b b b
3. perfusion of systemic capillaries with O2 blood
b b b b b b b
4. diffusion of O2 from systemic capillaries into the cell.
b b b b b b b b b
What is barometric pressure? -
b b b b
b ANS ✓measure of pressure of all the mixture of gases on a given chamber (aside f
b b b b b b b b b b b b b b b
rom water pressure)
b b
what do you have more of, perfusion of ventilation? - ANS ✓perfusion
b b b b b b b b b b b
How is saturation determined? -
b b b b
b ANS ✓the average of O2 that is binded to the over all hemoglobin
b b b b b b b b b b b b
what happens to saturation when pressure rises? - ANS ✓it rises.
b b b b b b b b b b
what are examples of interactions that decrease the affinity in the binding
b b b b b b b b b b b b
of O2 to hemoglobin? -
b b b b
b ANS ✓increased H+ ion, drop in pH, high CO2, increased temp, 23 DPG
b b b b b b b b b b b b
where is 23 DPG made? - ANS ✓the Liver
b b b b b b b b
BIO 669 b
, 3
BIO
What is a right shift? -
b b b b b
b ANS ✓the offloading of hemoglobin in the decrease in affinity for O2
b b b b b b b b b b b
why does hemoglobins affinity increase at the area of the lungs? -
b b b b b b b b b b b
b ANS ✓there is a lower temperature, rise of pH that is relative to the systemic circ
b b b b b b b b b b b b b b b
uit, and a low level in carbon dioxide (due to alveolar diffusing CO2
b b b b b b b b b b b b
what happens when you go up to a higher altitude? - ANS ✓Left shift-
b b b b b b b b b b b b b
b increased breathing rate due to less o2 to decrease CO2= alkalosis event
b b b b b b b b b b b
What does 2.3 DPG do? -
b b b b b
b ANS ✓curves the shift back, allowing O2 to be released from the tissues.
b b b b b b b b b b b b
(used in times of altitude sickness)
b b b b b
How is CO2 transported in the blood? -
b b b b b b b
b ANS ✓Dissolved in plasma, bound to hemoglobin/ protein, or as bicarbonate ion
b b b b b b b b b b b
s in plasma
b b
BIO 669 b
