A-LevelBiologyGas exchange9700/12 · Oct/Nov 2015 · Q281 Mark
Which reactions take place in a capillary in an active tissue? 1 carbon dioxide and water are formed from hydrogencarbonate ions and hydrogen ions 2 carbonic acid is formed from carbon dioxide and water 3 carbaminohaemoglobin is formed from carbon dioxide and haemoglobin 4 haemoglobin and hydrogen ions are formed from haemoglobinic acid
A1 and 2
B1 and 3
C2 and 3
D2 and 4
✓ Correct answer
C: 2 and 3
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