GCSE Biology, enzymes summary

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Enzymes summary

 

Enzymes are biological catalysts, this means that they speed up a reaction without changing.

 

They are made of structures of proteins.

 

Active site is where the molecules get digested. The substrate is the thing that is going to get digested.

 

This shape is a complementary shape that fits together like a lock and key.

 

 

 

 

 

 

Enzymes can't change shape. If the active site denatures it changes shape.

 

What causes denaturing?

 

1.    Temperature - this needs to be at 37.5 degrees Celsius (body temperature).

2.    pH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DESCRIBING is what the graph shows.

EXPLAINING is why the graph does this.

 

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