A scientist placed equal masses of living liver cells into two containers. Each container held the same volume of glucose solution. Hormone X was added to one container only.
The results after 20 minutes are shown in the table.
| Treatment | Initial glucose concentration in solution in mmol/dm³ | Final glucose concentration in solution in mmol/dm³ | Initial glycogen content in mg per g of cells | Final glycogen content in mg per g of cells |
|---|---|---|---|---|
| No hormone X | 8.0 | 7.8 | 24 | 25 |
| Hormone X added | 8.0 | 5.2 | 24 | 36 |
Use the results to explain which hormone X is. Suggest how the final results would differ if the liver cells were from a person with Type 2 diabetes.
85 exam-style questions on AQA GCSE Biology 5.3 Hormonal coordination in humans, covering 5.3.1 Human endocrine system, 5.3.2 Control of blood glucose concentration, 5.3.3 Maintaining water and nitrogen balance in the body, 5.3.4 Hormones in human reproduction, 5.3.5 Contraception, 5.3.6 The use of hormones to treat infertility (HT only), and 5.3.7 Negative feedback (HT only). Each one has a worked solution and a mark scheme showing where the marks go.