A-LevelBiologyGas exchange9700/12 · Oct/Nov 2011 · Q251 Mark
Which row shows the changes in concentration in the red blood cells when carbon dioxide diffuses from respiring cells?
Acarbonic anhydrase: decreases, hydrogencarbonate ions: no change, hydrogen ions: no change
Bcarbonic anhydrase: increases, hydrogencarbonate ions: increases, hydrogen ions: increases
Ccarbonic anhydrase: no change, hydrogencarbonate ions: decrease, hydrogen ions: increase
Dcarbonic anhydrase: no change, hydrogencarbonate ions: increase, hydrogen ions: increase
✓ Correct answer
D: carbonic anhydrase: no change, hydrogencarbonate ions: increase, hydrogen ions: increase
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