A garden centre checks four deliveries before placing the plants in one sales area. A delivery is rejected if the cause of its problem can pass from affected plants to healthy plants.
| Delivery | Finding |
|---|---|
| Basil plants | A testing kit containing monoclonal antibodies detects a fungus in rotting areas of the stems. |
| Cucumber plants | Caterpillars are feeding on the leaves of several plants. |
| Radish plants | The seedlings are stunted, but normal growth resumes after nitrate fertiliser is added. |
| Strawberry plants | Galls have formed on the stems, and a laboratory finds bacteria inside them. |
Which one of these deliveries should the garden centre accept?
The delivery of strawberry plants
The delivery of basil plants
The delivery of cucumber plants
The delivery of radish plants
133 exam-style questions on AQA GCSE Biology 3.3 Plant disease, covering 3.3.1 Detection and identification of plant diseases and 3.3.2 Plant defence responses. Each one has a worked solution and a mark scheme showing where the marks go.