# A patient with Type 1 diabetes does not produce insulin. Explain why this patient must inject insulin before eating a meal containing carbohydrates.

> Edexcel GCSE Biology (1BI0) — 7.2 Homeostasis · Explain · 4 marks

## Mark scheme (4 marks)

1. Carbohydrates are digested to glucose, causing blood glucose concentration to rise
2. Insulin causes liver and muscle cells to increase their uptake of glucose
3. Insulin causes conversion of glucose to glycogen in the liver
4. Without insulin, blood glucose concentration would remain too high / homeostasis of blood glucose would not be maintained

## Key terms

- [insulin](https://www.gradenine.co.uk/glossary/insulin)

## Related

- [Revision notes for Edexcel GCSE Biology (1BI0)](https://www.gradenine.co.uk/learn)
- [How to answer "Explain" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
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Source: [GradeNine](https://www.gradenine.co.uk/q/a-patient-with-type-1-diabetes-1915633e) · Published by Druglandscape Ltd.