# Glucose is a monomer. Explain how glucose monomers are used to build a polymer, and state two different polymers that can be formed from glucose monomers in living organisms.

> AQA A-Level Biology (7402) — 3.1.1 Monomers and Polymers · Explain · 5 marks

## Mark scheme (5 marks)

1. Glucose monomers are joined together (to form a polymer)
2. By condensation reactions (to form the polymer chain)
3. Water is released / removed during the reaction
4. First correct polymer named — starch OR glycogen
5. Second correct polymer named — cellulose OR glycogen OR starch (different from first answer)

## Key terms

- [monomer](https://www.gradenine.co.uk/glossary/monomer)
- [polymer](https://www.gradenine.co.uk/glossary/polymer)
- [glucose](https://www.gradenine.co.uk/glossary/glucose)

## Related

- [Revision notes for AQA A-Level Biology (7402)](https://www.gradenine.co.uk/learn)
- [How to answer "Explain" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
- [Practice this with AI marking (free)](https://www.gradenine.co.uk/start)

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Source: [GradeNine](https://www.gradenine.co.uk/q/glucose-is-a-monomer-explain-how-5ddc62ba) · Published by Druglandscape Ltd.