A-LevelBiologyGas exchange9700/12 · Oct/Nov 2019 · Q301 Mark
When active tissues have high carbon dioxide concentrations, oxyhaemoglobin releases oxygen to these tissues. What encourages this release in the presence of high concentrations of carbon dioxide? 1 carboxyhaemoglobin forms more readily 2 oxyhaemoglobin dissociates more readily 3 haemoglobin needs higher concentrations of oxygen to become saturated
A1, 2 and 3
B1 and 2 only
C1 and 3 only
D2 and 3 only
✓ Correct answer
D: 2 and 3 only
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Gas exchange and see which topics are most likely to come up next.
Sign up free →