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6 Cards in this Set
- Front
- Back
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What are enzymes? |
Large proteins that act as biological catalysts |
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What is a catalyst? |
A substance which increases the speed of a reaction without being changed or used up |
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What are proteins made up of? |
Chains of amino acids folded into unique shapes |
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Define active site |
A region on an enzyme that binds to a substance during a reaction |
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Define substrate |
The substance on which an enzyme acts |
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Explain the lock and key model |
Every enzyme has an active site with a unique shape that fits together with a specific substrate model, like a lock to a specific key. Enzymes usually only catalyse one specific reaction as for them to work, the substrate has to fit to the active site for the reaction to be catalysed. |
