9. Give comparison between the following:
(b) Cyclic and non-cyclic photophosphorylation
| Cyclic photophosphorylation | Non-cyclic photophosphorylation |
| Only photosystem I is involved in cyclic photophosphorylation | Both photosystems I and II are involved in non-cyclic photophosphorylation |
| The active reaction centre is P700 | The active reaction centre is P680 |
| Electron transportation occurs in a cyclic manner | Electron transport occurs in a non-cyclic manner |
| Oxygen evolution does not occur | Oxygen is released as a by-product |
| Only ATP is produced | Both ATP and NADPH are produced |