A-LevelBiologyGas exchange9700/12 · Oct/Nov 2010 · Q351 Mark
During an investigation on gas exchange, three measurements were made on four efficiency of gas exchange was the same in all four people. Which person, A, B, C or D, absorbed most oxygen during normal breathing? breathing rate /breaths per minute tidal volume /dm³ total lung volume /dm³
A14 0.6 6.4
B15 0.6 6.0
C16 0.5 6.4
D17 0.5 5.8
✓ Correct answer
B: 15 0.6 6.0
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