A scientist grows two cultures of the same type of animal cell. A chemical that slows respiration is added to one of the cultures. The table shows the results.
| Culture | ATP made by respiration (% of untreated culture) | Cells completing division per hour |
|---|---|---|
| untreated | 100 | 18 |
| treated with the chemical | 40 | 7 |
Use the data to describe the effect of the chemical on cell division. Explain this effect.
113 exam-style questions on OCR GCSE Biology 1.3 Respiration, covering 1.3.1 Cellular respiration supplies ATP, 1.3.2 Aerobic and anaerobic respiration, 1.3.3 Sugars and carbohydrates, 1.3.4 Amino acids and proteins, and 1.3.5 Fatty acids and lipids. Each one has a worked solution and a mark scheme showing where the marks go.