The table shows the rate of oxygen use by a person's muscles.
Table
| Activity | Rate of oxygen use in cm3 min−1\mathrm{cm^3\,min^{-1}}cm3min−1 |
|---|---|
| resting | 250 |
| walking | 750 |
| running | 1500 |
Which statement correctly uses the data to explain respiration during walking?
oxygen use is twice the resting rate, supporting more aerobic respiration
oxygen use is twice the resting rate, supporting more anaerobic respiration
oxygen use is three times the resting rate, supporting more anaerobic respiration
oxygen use is three times the resting rate, supporting more aerobic respiration
42 exam-style questions on Edexcel GCSE Biology 8.3 Respiration, covering 8.3.1 Aerobic and anaerobic respiration. Each one has a worked solution and a mark scheme showing where the marks go.