answer and explain please BI222 Lecture 11ii Worksheet: How do animals accomplish exchange and bulk flow? Topic 11, part ii - Gas Exchange QUESTION 1. A mammal at sea level ( PO 2 = 160 mmHg ) decides to climb Mt . OSU, where PO 2 in air is 50 mmHg . 1a. On Mt. OSU, the PO 2 within alveolar spaces of this mammal will be higher / same / lower than the PO 2 of air outside its lungs. (Hint: "fresh" air mixes with "old" air in mammalian lungs) 1b. The PO 2 of blood leaving the lungs will be higher / same / lower than the PO 2 of blood entering body tissues. (Hint: think about where gas exchange occurs) 1c. Given that PO 2 of body tissues (at rest) is about 40 mmHg , is there a strong gradient for O 2 movement from blood and into body tissues on Mt. OSU? Yes No 1d. Should this mammal spend its Spring Break on Mt. OSU? Yes No 1e. Would it be easier / harder to acquire O 2 on Mt. OSU if you were a bird? Briefly explain why. QUESTION 2. 2a. On this figure, draw a single large arrow showing the general direction of CO 2 movement. 2b. Given that gases move down partial pressure gradients, identify the location where partial pressure of CO 2 should be lowest to favor the direction of movement you indicated in 2 a ..

1. answer and explain please
BI222 Lecture 11ii Worksheet: How do animals accomplish exchange and bulk flow? Topic 11,
part ii - Gas Exchange QUESTION 1. A mammal at sea level ( PO 2 = 160 mmHg ) decides to
climb Mt . OSU, where PO 2 in air is 50 mmHg . 1a. On Mt. OSU, the PO 2 within alveolar
spaces of this mammal will be higher / same / lower than the PO 2 of air outside its lungs. (Hint:
"fresh" air mixes with "old" air in mammalian lungs) 1b. The PO 2 of blood leaving the lungs
will be higher / same / lower than the PO 2 of blood entering body tissues. (Hint: think about
where gas exchange occurs) 1c. Given that PO 2 of body tissues (at rest) is about 40 mmHg , is
there a strong gradient for O 2 movement from blood and into body tissues on Mt. OSU? Yes No
1d. Should this mammal spend its Spring Break on Mt. OSU? Yes No 1e. Would it be easier /
harder to acquire O 2 on Mt. OSU if you were a bird? Briefly explain why. QUESTION 2. 2a.
On this figure, draw a single large arrow showing the general direction of CO 2 movement. 2b.
Given that gases move down partial pressure gradients, identify the location where partial
pressure of CO 2 should be lowest to favor the direction of movement you indicated in 2 a .