Gas Exchange Flashcards
1
Q
Describe the composition of air (inspired and expired)
A
Expired air has more co2, less oxygen and more water vapour
2
Q
How to test for co2 in limewater
A
If limewater turns cloudy there is a lot of co2 present
3
Q
Features of gas exchange surfaces
A
Large surface area, good oxygen supply, moist, ventilation, thin surface for short diffusion
4
Q
What happens to the breathing rate as you exercise
A
Increases
5
Q
A
