A technician damages four different structures, J, K, L and M, in bacteria collected from a water filter.
The table shows what happens to a bacterium when each structure is damaged.
| Structure | Effect on the bacterium when the structure is damaged |
|---|---|
| J | It can no longer move through the water. |
| K | It was resistant to an antibiotic but is no longer resistant. |
| L | It loses its support and its shape changes. |
| M | It can no longer make proteins. |
Which structure is the cell wall?
Structure J
Structure K
Structure L
Structure M
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.