A large culture of living skin cells is supplied with glucose as its only respiratory substrate in an insulated container.
The table shows measurements taken over 15 minutes.
| measurement | result |
|---|---|
| mass of glucose used | 4.5 mg |
| amount of ATP formed | 720 µmol |
| increase in temperature of the culture | 0.2 °C |
Explain how the results provide evidence that cellular respiration occurred in the skin cells.
The supply of glucose is stopped. Suggest why the skin cells would soon be unable to carry out active transport.
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.