gaseous exchange Flashcards
1
Q
what’s the Partial Pressure rule?
A
gases move from high PP to low PP
2
Q
what is partial pressure?
A
the pressure a gas exerts within a mixture of gases
3
Q
where does o2 diffuse from?
A
alveoli to the capillaries and then to the muslces
4
Q
where does co2 diffuse from?
A
muscles to the capillaries and then to the alveoli
5
Q
does gaseous exchange happen faster at exercise?
A
yes
6
Q
why does gaseous exchange happen faster during exercise?
A
more co2 and less o2 in muscles so diffusion happens faster
7
Q
what happens when oxygen associates with oxygen?
A
form oxyhaemoglobin
8
Q
as o2 partial pressure decreases what’s happens?
A
haemoglobin more readily dissociates with oxygen
