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The diagram shows one example of enzyme action as demonstrated by the 'Lock and Key' model - HSC - SSCE Biology - Question 1 - 2007 - Paper 1
Question 1
The diagram shows one example of enzyme action as demonstrated by the 'Lock and Key' model. Which part of the diagram represents the substrate? (A) (B) (C) (D)
Worked Solution & Example Answer:The diagram shows one example of enzyme action as demonstrated by the 'Lock and Key' model - HSC - SSCE Biology - Question 1 - 2007 - Paper 1
Step 1
Which part of the diagram represents the substrate?
Answer
In the context of the 'Lock and Key' model of enzyme action, the substrate is the molecule that interacts with the enzyme. In the given diagram, option (D) represents the substrate, which is indicated by the molecules labeled 'A' and 'B'.
This is because, in the Lock and Key model, the substrate fits precisely into the active site of the enzyme (represented by 'C' in the diagram), resembling a key fitting into a lock.