Proteins are made from long chains of smaller molecules called amino acids
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What is a catalyst?
A catalyst is a substance which changes the rate of reaction but is unchanged at the end of the reaction
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What is an enzyme?
Enzymes are biological catalysts and also proteins, and usually denatured above about 45ºC.
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Explain the ‘lock and key’ theory of enzymes
The lock is the enzyme and the key is the substrate. Only the correctly sized key (substrate) fits into the key hole (active site) of the lock (enzyme).
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What temperatures do human enzymes work best at and what happens to enzymes if they are put into high temperatures?
37 degrees Celsius (or body temperature) if the temperature increases from this, they will denature
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Other cards in this set
Card 2
Front
What is a catalyst?
Back
A catalyst is a substance which changes the rate of reaction but is unchanged at the end of the reaction
Card 3
Front
What is an enzyme?
Back
Card 4
Front
Explain the ‘lock and key’ theory of enzymes
Back
Card 5
Front
What temperatures do human enzymes work best at and what happens to enzymes if they are put into high temperatures?
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