| A | B |
|---|
| Carbon dioxide | ...is taken from the air to make food |
| Oxygen | ..produced in photosynthesis and needed for respiration |
| Light | The energy supply to produce food from carbon dioxide and water |
| Minerals | The chemicals needed to combine with food made by the plant to make leaves, etc. |
| Chlorophyll | The green substance in the leaves and stem |
| Roots | Supply mineral to the plant from the surrounding soil |
| Fertilisers | Can be added to soils which don't contain enough minerals |
| Warmth | An important factor, needed to start the chemical reactions in the plant |
| Water | Makes food, transports materials around the plant and helps maintain structure |
| Photosynthesis | The process by which plants make food |
