A pharmaceutical company tests a capsule that releases insulin into the stomach. The company suggests using the capsule instead of insulin injections for people with type 1 diabetes.
Explain why the insulin capsule is unlikely to be an effective treatment and how insulin injections help to control the person's blood glucose concentration after they eat carbohydrate.
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.