A current theory of enzyme action is illustrated in the diagram below - Leaving Cert Biology - Question 4 - 2021
Question 4
A current theory of enzyme action is illustrated in the diagram below.
(a) Identify what is represented by each of the labels A and B.
A:
B:
(b) Which theory of... show full transcript
Worked Solution & Example Answer:A current theory of enzyme action is illustrated in the diagram below - Leaving Cert Biology - Question 4 - 2021
Step 1
Identify what is represented by each of the labels A and B.
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Answer
A: Substrate
B: Enzyme-substrate complex
Step 2
Which theory of enzyme action is illustrated by the diagram?
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Answer
The diagram illustrates the Induced fit or active site theory, which is often summarized as the 'lock and key' model.
Step 3
What type of metabolic reaction is illustrated by the diagram?
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Answer
The metabolic reaction illustrated by the diagram is catabolic.
Step 4
Justify your answer at part (c) above.
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Answer
This is justified because in a catabolic reaction, the substrate (or molecule A) is broken down into simpler products.
Step 5
What is meant by specificity in relation to enzymes?
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Answer
Specificity in relation to enzymes refers to the property that an enzyme only acts on one specific substrate type.
Step 6
Identify the cell organelle where enzymes are produced.
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Answer
The cell organelle where enzymes are produced is the ribosome.
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