A-LevelBiologyTransport in mammals9700/12 · Oct/Nov 2016 · Q301 Mark
Which statement describes the effect of increased carbon dioxide concentration on the oxygen dissociation curve of human haemoglobin and its significance?
AThe curve shifts to the left allowing haemoglobin to bind more oxygen in active tissues.
BThe curve shifts to the left allowing haemoglobin to offload more oxygen in active tissues.
CThe curve shifts to the right allowing haemoglobin to bind more oxygen in active tissues.
DThe curve shifts to the right allowing haemoglobin to offload more oxygen in active tissues.
✓ Correct answer
D: The curve shifts to the right allowing haemoglobin to offload more oxygen in active tissues.
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