A-Level Biology OCR A
Enzyme Increasing Bonds Protein Structure Changed Shape Longer
| Front |
Explain why increasing the temperature up from the optimum decreases the rate of reaction abruptly. |
| Back |
Increasing temp up from optimum:- At higher temp, bonds holding enzyme protein structure together vibrate more and eventually strain and break
- Breaking of bonds result in change in the precise tertiary structure of the protein
- Enzyme has changed shape - denatured
- Active site has changed shape and is no longer complementary to substrate - substrate cant fit - enzyme is no longer a functional catalyst
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A-Level Biology OCR A