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Science test
chapter 3-3
| Term | Definition |
|---|---|
| Metabolism | The total of all chemical reactions in an organism. |
| Photosynthesis | Producers use light energy to make sugars, which can be used as food. |
| Respiration | Chemical reactions occur that break down food molecules into simpler substances. |
| Fermentation | To release some of the energy stored in glucosenmolecules. |