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A-LevelBiologyTransport in mammals9700/12 · Feb/Mar 2021 · Q321 Mark

The graph shows the oxygen dissociation curves for adult haemoglobin at two carbon dioxide concentrations. [Graph showing two oxygen dissociation curves P and Q, with points S and R indicated] Which letters show measurements taken in the capillaries of the lungs and in the capillaries of active muscle?

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Alungs: P active muscle: R
Blungs: P active muscle: S
Clungs: Q active muscle: R
Dlungs: Q active muscle: S

✓ Correct answer

A: lungs: P active muscle: R

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About this question

Topic
Transport in mammals, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Feb/Mar 2021 Paper 1 Variant 2, question 32.

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