Enzymes
- Created by: elen roberts
- Created on: 28-04-13 18:54
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- Enzymes
- Activation energy
- Substrate must over come the activation energy to change
- Enzymes reduce activation energy
- Factors effecting rate or reaction
- pH
- Affects R groups, can be natural, artificial, reversible or irriversible
- Temperature
- Higher temp. more kinetic energy, more collisions
- Higher temperature, more energy to get over activation energy
- Increases ROR until the optimum, then active sites become denatured
- Inhibitors
- Non-competetive
- Bind to the active site, compeete with substrate
- If substrate concentrations high enough, ROR will approach normal speed
- Competetive
- Bind to the enzyme and change the shape of the active site, reducing enzyme concentration
- Reduce ROR
- Non-competetive
- Substrate concentration
- Has a peak as active sites become saturated
- More enzyme substrates can form
- pH
- Models
- Activation energy
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