Scientists treated unspecialised animal cells. The table shows observations made before and after the treatment.
| Observation | Before treatment | After treatment |
|---|---|---|
| Tail | Absent | Long tail present |
| Mitochondria | Small number | Many, concentrated in the middle section |
| Acrosome | Absent | Present at the top of the head |
Explain how the observations show that the cells differentiated and predict how each change would affect the cells' ability to fertilise an egg.
282 exam-style questions on AQA GCSE Biology 1.1 Cell structure, covering 1.1.1 Eukaryotes and prokaryotes, 1.1.2 Animal and plant cells, 1.1.3 Cell specialisation, 1.1.4 Cell differentiation, 1.1.5 Microscopy, and 1.1.6 Culturing microorganisms. Each one has a worked solution and a mark scheme showing where the marks go.