| A | B |
| Photosystem II | First light accepting protein of the light dependant reaction |
| Photosystem I | Second light accepting protein of the light dependant reaction |
| Photolysis | Splitting of water |
| NADPH | Reduced NADP |
| thylakoid | Disc -like structure inside chloroplasts |
| Grana | Stacks of thylakoids |
| lamellae | Connections between grana |
| ATP | Made from ADP and Pi in the light-dependant reaction |
| Light independant reaction | The Calvin cycle forms this |
| Calvin cycle | the dark reaction |
| stroma | The liquid surrounding the grana |