The table shows the mean number of mitochondria in four types of human cell.
Table
| Type of cell | Mean number of mitochondria per cell |
|---|---|
| Heart muscle cell | 5000 |
| Liver cell | 2000 |
| Skin cell | 300 |
| Red blood cell | 0 |
Which conclusion is best supported by the data?
Heart muscle cells release the most energy per cell by aerobic respiration.
Heart muscle cells make the most proteins for release from the cell.
Red blood cells are unable to release any energy from glucose at all.
Skin cells have the highest rate of aerobic respiration of all four cells.
130 exam-style questions on OCR GCSE Biology 1.1 Cell structures, covering 1.1.1 Viewing cells with light microscopes, 1.1.2 Sub-cellular structures and functions, and 1.1.3 Electron microscopy and resolution. Each one has a worked solution and a mark scheme showing where the marks go.