A-LevelBiologyTransport in mammals9700/12 · Oct/Nov 2009 · Q281 Mark

The graph shows the percentage saturation of haemoglobin with oxygen at din pressures of oxygen. [Graph of % saturation of haemoglobin with oxygen vs partial pressure of oxygen] Which range of partial pressures of oxygen produces the greatest change of perce saturation of haemoglobin per unit oxygen tension?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A[Range A on graph]

B[Range B on graph]

C[Range C on graph]

D[Range D on graph]

✓ Correct answer

B: [Range B on graph]

Oracle Prep sorts past-paper questions by topic, so you can drill Transport in mammals and see which topics are most likely to come up next.

Topic: Transport in mammals, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2009 Paper 1 Variant 2, question 28.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content