Explain how nucleus links to this AQA GCSE Biology objective: describe the function of the nucleus.

A strong answer should state the relevant biological idea, explain how it works in Animal and plant cells, and link it directly to Cell structure.

This exam-style response should address "Describe the function of the nucleus." by naming the key biological idea, explaining how it works in Animal and plant cells, and linking it back to Cell structure. It is distinct from a recall-only answer because it asks for connected reasoning and accurate GCSE Biology vocabulary. This version focuses on Animal and plant cells within Cell structure and uses the question reference d55c83 to keep the explanation distinct. Variant 62 checks written explanation rather than multiple-choice recognition.