| A | B |
|---|
| Plasmolysis | When a plant cell loses water and shrinks |
| Transpiration stream | The movement of water through a plant from roots to leaves |
| Turgid | When a plant cell can hold no more water |
| Respiration | The process by which living things make energy from glucose and oxygen |
| Active transport | The absorption of substances against a concentration gradient |
| Biomass | The mass of a living organism |
| Photosynthesis | The process by which green plants make food |
| Osmosis | The movement of water molecules from areas of high water concentration to areas of low water concentration |
| Diffusion | The gradual movement of particles from where there are more to where there are less |
| Transpiration | The loss of water from a plant through its leaves |
| Decomposition | The decay of dead plants and animals by bacteria |
| Auxins | Plant growth hormones |
| Insecticides | Sprayed on to crops to kill insects |
| Herbicides | Sprayed on to crops to kill weeds |
| Fungicides | Sprayed on to crops to kill fungi |
| Nitrifying bacteria | Turn ammonium compounds into useful nitrates |
| Nitrogen fixing bacteria | Turn atmospheric nitrogen into useful nitrates |
| Biodiversity | The number of different types of living things there are in an ecosystem |
| Conservation | The management of ecosystems to protect habitats |
| Minerals | Needed for healthy plant growth |
