# Describe how pectinase is used in the production of fruit juice, and explain why this enzyme increases the yield of juice obtained.

> Cambridge International IGCSE Biology (0610) — 21.1 Biotechnology and genetic modification · Describe · 4 marks

## Mark scheme (4 marks)

1. Pectinase breaks down pectin in plant cell walls
2. Pectin holds adjacent plant cell walls together
3. Breaking down pectin releases the contents of the cells
4. This increases the yield of fruit juice obtained

## Key terms

- [pectinase](https://www.gradenine.co.uk/glossary/pectinase)
- [pectin](https://www.gradenine.co.uk/glossary/pectin)
- [yield](https://www.gradenine.co.uk/glossary/yield)

## Related

- [Revision notes for Cambridge International IGCSE Biology (0610)](https://www.gradenine.co.uk/learn)
- [How to answer "Describe" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
- [Practice this with AI marking (free)](https://www.gradenine.co.uk/start)

---
Source: [GradeNine](https://www.gradenine.co.uk/q/describe-how-pectinase-is-used-in-1c6411b1) · Published by Druglandscape Ltd.