A scientist treated three identical cultures of animal cells. The treatment left a different mean number of functioning ribosomes in each culture. No other sub-cellular structures were affected.
The scientist measured the mass of protein made by 1 million cells in 1 hour.
| Culture | Mean number of functioning ribosomes per cell / millions | Mass of protein made by 1 million cells in 1 hour / micrograms |
|---|---|---|
| P | 2.0 | 6.0 |
| Q | 5.0 | 15.0 |
| R | 8.0 | 24.0 |
Use the data to explain the function of ribosomes.
A fourth culture has a mean of 3.0 million functioning ribosomes per cell.
Calculate the predicted mass of protein made by 1 million cells in 1 hour.
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.