A-LevelBiologyGas exchange9700/12 · Feb/Mar 2019 · Q301 Mark
Which statements about the formation of haemoglobinic acid are correct? 1 It is linked to the action of carbonic anhydrase. 2 It prevents blood from becoming too acidic by removing excess hydrogen ions. 3 It can only occur when oxygen associates with haemoglobin.
A1, 2 and 3
B1 and 2 only
C1 only
D2 and 3 only
✓ Correct answer
B: 1 and 2 only
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