Some cells in the pancreas make and release large amounts of digestive enzymes. Digestive enzymes are proteins.
The Table shows information about a pancreas cell and a fat storage cell.
Table
| Type of cell | Mean number of ribosomes per cell | Mean number of mitochondria per cell |
|---|---|---|
| pancreas cell that makes digestive enzymes | 1.3 × 107 | 1200 |
| fat storage cell | 2.0 × 105 | 150 |
Calculate how many times more ribosomes the pancreas cell has than the fat storage cell.
Explain why the pancreas cell has many more ribosomes and many more mitochondria than the fat storage cell.
A student concludes:
'All cells in the pancreas contain more ribosomes than fat storage cells.'
Evaluate this conclusion.
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.