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A-LevelBiologyGas exchange9700/12 · Feb/Mar 2018 · Q311 Mark

Which of these statements about the formation of haemoglobinic acid are correct? 1 It depends on the formation of carbaminohaemoglobin. 2 It removes excess hydrogen ions preventing the blood becoming too acidic. 3 It is linked to the action of carbonic anhydrase.

A1, 2 and 3
B1 and 2 only
C1 only
D2 and 3 only

✓ Correct answer

D: 2 and 3 only

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About this question

Topic
Gas exchange, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Feb/Mar 2018 Paper 1 Variant 2, question 31.

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