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Enzymes
| Term | Definition |
|---|---|
| catalyst | A substance that speeds up a chemical reaction without being changed |
| enzyme | A biological catalyst (usually a protein). |
| substrate | The reactant molecule that an enzyme works on. |
| Active site | The part of the enzyme where the substrate binds. |
| enzymes function | lower the activation energy of chemical reactions |
| Which line is the enzyme | blue/black (lower) |
| What is the optimum pH of substance 4 in Graph 1? (click the "Targets" game to see the graphs) | 2 |
| What is the optimum temperature for substance 2 in Graph 2? (click the "Targets" game to see the graphs) | 55 |
| Using Graph 2, Would substance 5 be more fit for an acidic or basic environment? (click the "Targets" game to see the graphs) | basic (pH higher than 7) |
| enzymes are denatured by | temperature and pH that is too high or too low |
| denature | enzymes that have lost their shape and stop working |
| Increasing enzyme or substrate concentration will | speed up the reaction |
| not having an enzyme | will slow down or completely stop a reaction |
| Will an enzyme work on any substance? | No, they are specific |
| What happens when an enzyme finishes a reaction? | it is released (unchanged) and used for another reaction |
Created by:
zahnsg
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