Two equal samples of animal muscle tissue are stimulated to contract at the same rate.
Both samples are supplied with glucose. The table shows the rate of glucose uptake by each sample.
| Sample | Oxygen supplied | Rate of glucose uptake in µmol per minute |
|---|---|---|
| A | yes | 0.80 |
| B | no | 12.0 |
Calculate how many times greater the rate of glucose uptake is in sample B than in sample A.
Show your working.
Explain why sample B takes up glucose at a greater rate when the two samples are contracting at the same rate.
98 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.