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Enzymes
Enzyme specificty
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Ruth Jacob
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Cards (8)
What is enzyme specificity?
An enzyme only breaks down one specific type of
substrate
molecule
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Give an example of an enzyme and its substrate.
Protease
enzymes
break down protein but not
starch
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How does the shape of the active site relate to enzyme specificity?
The shape of the active site will only fit one type of
substrate molecule
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What happens to other molecules that do not fit the active site?
They will
not
be
broken down
or
joined together
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What is the lock and key model of enzyme action?
The enzyme acts as the key to unlock or lock the
substrate
molecules
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In the lock and key model, what is the substrate compared to?
The substrate is the key and the
active site
is the lock
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What are the key terms related to enzyme specificity?
Active site
Substrate
Enzyme
Specific
Complementary
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Why can enzyme A break down substrate A but not substrate B?
Enzymes are specific; substrate A is complementary to the
active site
of the enzyme
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