# Compare the role of the nucleus and the mitochondria in a eukaryotic cell, explaining how their functions contribute to the overall activity of the cell.

> OCR A-Level Biology A (H420) — 2 Foundations in biology · Compare · 4 marks

## Mark scheme (4 marks)

1. identification of the nucleus as the site of DNA storage
2. identification of the mitochondria as the site of energy production
3. explanation of how the nucleus controls the cell's activities
4. explanation of how the mitochondria contribute to the cell's overall energy requirements

## Related

- [Revision notes for OCR A-Level Biology A (H420)](https://www.gradenine.co.uk/learn)
- [How to answer "Compare" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
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