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Unit 2 Biology
Enzymes and Biological Reactions Vocabulary
| Term | Definition |
|---|---|
| Catalyst | a substance that speeds up a chemical reaction without being chemically changed |
| Neutral | a pH of 7 (water has a pH of 7) |
| Activation Energy | the amount of energy required to begin a chemical reaction |
| Acids | pH of less than 7 |
| Enzyme | specific proteins that combine with other substances called substrates |
| Bases | pH more than 7 |
| Substrate | a reactant to which an enzyme binds |
| Enzyme-Substrate Complex | the joining of one enzyme with one substrate |