Zusammenfassung der Ressource
Transport of CO2
- This comes from
a respiring body
cell
- 5% is
dissolved in
the blood
plasma
- 10-20% is carried bound
to haemoglobin called
carbaminohaemoglobin
- 75-85% is as
bicarbonate in
cells and plasma.
- CO2+H2O
- Carbonic anhydrase enzyme
- Carbonic acid
- HCO3- and H+
- H+ ions transported by Hb
as haemoglobinic acid.
This, therefore, shows Hb
as a blood buffer
- HCO3- the reacts with NA +
- Forms NaCO3
- Na comes from
the NaCl in the
blood
- Cl- then diffuses into the
cells to compensate for
the loss of bicarbonate
ions. This is called
chloride shift.
- Reversible
reaction
- Reversible
reaction