Enzymes
- Created by: LauraNannini
- Created on: 18-04-20 09:21
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- Topic 3
- Characteristics of enzymes
- Optimum Temperature range
- Work best at 40 degrees
- Optimum pH in stomach and small intestine
- Enzymes in the stomach like low pH's
- Enzymes in the small enzyme like high pH's
- Concentration of enzymes and substrates
- If the concentration of enzymes or substrates increase the rate of reaction does too
- Have a tertiary protein structure
- They have an active site complimentary to a specific substrate
- This form an enzyme-substrate complex
- Active sites can be modified slightly to fit the substrate
- Biological catalysts that lower activation energy and doesn't get involved in the chemical reactions
- Optimum Temperature range
- Enzyme denature
- enzymes permanently denature when their environment is to acidic or alkaline or it too hot or cold
- Occurs when we are sick and enzymes are no longer able to carry out their function
- Competitive inhibitors
- They have a similar shape to the substrate and bind to the active site but no reactions occur
- If the substrate cant bind to the enzyme the rate of reaction slows down
- Non-competitive inhibitors
- Allosteric sites allow the inhibitors to bind to the enzyme
- The non-competitive inhibitors cause the enzyme to change its shape
- This causes the substrate to be unable to bind to the enzyme
- Characteristics of enzymes
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