Reversible Reaction Pathways Flashcards
1
Q
How does gas exchange happen at respiring Tissues?
A
- Respiring cells releases carbon dioxide
- CO2 diffuses into blood plasma
- CO2 diffuses into ethroyctes
- CO2 an water react to form carbonic acid
- reaction catalysed by carbon anhydrase
- carbon acid dissociates to form hydrogen and hydrogen carbonate ions
- hydrogen carbonate ions diffuses into the blood plasma
- chloride ions diffuse into ethrocytes to replace hydrogen ions - chloride shift
- the dissociate hydrogen ions reacts with haemoglobinic acid and the oxygen is releases
1
Q
How does gas exchange happen at the lungs?
A
- Oxygen diffuses from the alvelous into erythrocytes down a concentration gradient
- oxygen reacts with haemoglobinic acid to release hydrogen ions and produce oxyhaemoglobin
- chloride ions diffuse back
hydrogen carbonate ions and hydrogen reacts to form carbonic acid is broken down into water and carbon dioxide - catalysed by anhydrase
- carbin dioxide diffuses out of the blood plasma into the alvelous
- carbon dioxide is breathed out.
