recap gaseous exchange

Gases will diffuse from areas of _______ pressure

• low to high

• high to low

Haemoglobin is fully saturated when it has _ molecules attached to it

Between the alveoli and blood capillary membrane is ________ gaseous exchange

Between the blood capillary and muscle cell membrane is _________ gaseous exchange

Partial pressure of oxygen can be abbreviated to

Gases will ______ from an area of high partial pressure to low partial pressure.

If the diffusion gradient steepens, the rate of diffusion will

• Stay the same

• Increase

• Decrease

When blood leaves the muscles after gaseous exchange has occurred, it will be saturated in

When haemoglobin combines with oxygen it forms