| S.N | Photosynthesis | Respiration |
| 1. | An anabolic process. | A catabolic process. |
| 2. | Complex organic food is synthesized from simple inorganic food. | Complex organic foods are oxidized into simple inorganic forms. |
| 3. | Carbon dioxide is absorbed. | Carbon dioxide is evolved. |
| 4. | Oxygen is evolved. | Oxygen is absorbed. |
| 5. | It occurs in presence of light. | It occurs day and night. Light is not essential for this process. |
| 6. | It occurs only in green plants. | It takes place in all plants and animals. |
| 7. | Presence of chlorophyll is necessary. | Presence of chlorophyll is not necessary. |
| 8. | Food is accumulated and dry weight of plant is increased. | Weight decreases due to consumption of food. |
| 9. | Carbon dioxide and water are used as raw materials. | Glucose and oxygen are used as raw materials. |
| 10. | It is an endothermic process. | It is an exothermic process. |
| 11. | Energy is stored during this process. | Energy is released during this process. |
| 12. | It occurs in chloroplast. | It occurs in mitochondria and cytoplasm. |
| 13. | The end products are glucose and oxygen. | The end products are carbon dioxide and water. |
| 14. | Radiant energy is converted to potential energy. | Potential energy is converted into kinetic energy |
| 15. | One glucose molecule is synthesized. | One glucose molecule is oxidized. |
| 16. | 18 ATP molecules are utilized. | 38 ATP molecules are formed. |
Image source: bioninja
References:
i) https://diferr.com/difference-between-photosynthesis-and-respiration/
ii) https://askanydifference.com/difference-between-photosynthesis-and-respiration/