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Lactase enzymes
Why does the enzyme lactase react with lactose but not with sucrose?
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The enzyme lactase has an active site that will only break down lactose substrate (into glucose & galactose) because of its shape. Sucrose is broken down (into fructose & glucose) by sucrase as its active site fits with sucrose.
All enzymes are substrate specific & will not break down anything other that what it is meant to. |
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