Equal masses of plant root cells were kept without oxygen at different temperatures. The volume of carbon dioxide collected from each sample after 40 minutes is shown in the table.
| Temperature in ∘C^\circ\text{C}∘C | Volume of carbon dioxide in cm3\text{cm}^3cm3 |
|---|---|
| 18 | 4.0 |
| 28 | 7.0 |
Calculate the percentage increase in carbon dioxide production at 28 ∘C28\ ^\circ\text{C}28 ∘C compared with 18 ∘C18\ ^\circ\text{C}18 ∘C.
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.