A person cycled for 60 minutes and then rested for 30 minutes. Before cycling, the person's blood glucose concentration was at its optimum level.
| Time (minutes) | Blood glucose concentration (mmol/L) |
|---|---|
| 0 | 5.2 |
| 30 | 4.7 |
| 60 | 4.1 |
| 90 | 4.8 |
Describe how the blood glucose concentration changed during the 90 minutes.
At 60 minutes, an automatic control system was producing a response. State whether this response should increase or decrease the blood glucose concentration. Explain how this response would help to maintain cell function.
76 exam-style questions on AQA GCSE Biology 5.1 Homeostasis, covering 5.1 Homeostasis. Each one has a worked solution and a mark scheme showing where the marks go.