A scientist investigates the effect of insulin on muscle cells and liver cells.
The glucose concentration surrounding each sample of muscle cells was 7.0 mmol dm−37.0\,\mathrm{mmol\,dm^{-3}}7.0mmoldm−3 at the start. The scientist recorded the results after 30 minutes.
| Insulin added | Glucose concentration surrounding muscle cells after 30 minutes / mmol dm−3\mathrm{mmol\,dm^{-3}}mmoldm−3 | Glycogen formed by liver cells / mg g−1\mathrm{mg\,g^{-1}}mgg−1 |
|---|---|---|
| no | 6.6 | 1.2 |
| yes | 4.4 | 6.8 |
Explain how the results support the use of insulin to control blood glucose concentration in a person with type 1 diabetes.
Include in your answer:
94 exam-style questions on Edexcel GCSE Biology 7.4 Blood glucose and the urinary system, covering 7.4.1 Insulin and blood glucose control, 7.4.2 Glucagon and blood glucose regulation, 7.4.3 Type 1 and type 2 diabetes, 7.4.4 Structure of the urinary system, 7.4.5 Structure and function of the nephron, 7.4.6 ADH and water regulation, 7.4.7 Treatments for kidney failure, and 7.4.8 Production of urea in the liver. Each one has a worked solution and a mark scheme showing where the marks go.