Artificial intelligence in the post-deep learning era
B2.14 enzyme action
1. Enzyme action
WALT: To be able to describe how enzymes work.
WILF:
~ Recall what the word denatured means. (D)
~ Describe how factors (temperature, pH and
concentration) can affect the activity of enzymes. (C)
~ Explain the model of the ‘Lock and Key’ hypothesis of
showing how enzymes work. (B)
~ Explain how enzymes work referring to the active site
and how it can be affected . (A/A*)
Keywords
enzyme active site Lock and Key hypothesis
substrate
2. The ‘lock and key’ hypothesis
Substrate
molecules
Active site
Reaction happens (bonds
either made or broken)
Product
Enzymes have a specific 3D
structure
Enzyme
Enzyme-substrate
complex
5. The ‘lock and key’ hypothesis
Task: Copy this
image, label and add
notes to explain how
the ‘lock and key’
hypothesis works.
Keywords
enzyme substrate active site
3D shape specific reaction
product
6. The ‘lock and key’ hypothesis
A change in temperature or pH can affect the bonds that
hold the protein together. This causes the enzyme to
denature, loose its shape.
7. Factors which affect enzyme
reactions
Use information on
pg 54 to make
notes on how each
factor affects the
rate of reaction.
8. Enzyme triominoes
1. Cut out all your
triangle pieces.
2. Match up a
question with an
ANSWER.
3. Create 3 of your
own question
and answers.
4. Glue into your
books.
You should end up with a
triangle shape like the one
above.
9. The ‘lock and key’ hypothesis
The ‘lock and key’ hypothesis
Copy and label the diagram from the board and then use the
keywords to fill in the gaps.
Copy and label the diagram from the board and then use the
keywords to fill in the gaps.
Enzymes have a ________________ 3d shape.
Enzymes have a ________________ 3d shape.
The molecules that enzymes work on are called
____________. This molecule fits into the enzymes
____________ _________, this is a different shape in each
type of enzyme.
The molecules that enzymes work on are called
____________. This molecule fits into the enzymes
____________ _________, this is a different shape in each
type of enzyme.
The reaction takes place, this could involve ________ being
made or broken. After the reaction the ____________ is
released.
The reaction takes place, this could involve ________ being
made or broken. After the reaction the ____________ is
released.
The ‘lock and key’ hypothesis
The ‘lock and key’ hypothesis
Copy and label the diagram from the board and then use the
keywords to fill in the gaps.
Copy and label the diagram from the board and then use the
keywords to fill in the gaps.
Enzymes have a ________________ 3d shape.
Enzymes have a ________________ 3d shape.
The molecules that enzymes work on are called
____________. This molecule fits into the enzymes
____________ _________, this is a different shape in each
type of enzyme.
The molecules that enzymes work on are called
____________. This molecule fits into the enzymes
____________ _________, this is a different shape in each
type of enzyme.
The reaction takes place, this could involve ________ being
made or broken. After the reaction the ____________ is
released.
The reaction takes place, this could involve ________ being
made or broken. After the reaction the ____________ is
released.
Editor's Notes
Recall specific 3d globular shape. Collision theory.
Collision theory.
Recall what is the rate of reaction, ‘how quickly reactants are converted into products’
