The graph below shows the changes to the concentrations of substrate and product during an enzyme-controlled reaction - Scottish Highers Human Biology - Question 6 - 2015
Question 6
The graph below shows the changes to the concentrations of substrate and product during an enzyme-controlled reaction.
High
concentration of substrate and product
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Worked Solution & Example Answer:The graph below shows the changes to the concentrations of substrate and product during an enzyme-controlled reaction - Scottish Highers Human Biology - Question 6 - 2015
Step 1
Substrate
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Answer
In the graph, the concentration of substrate (X) decreases as time progresses.
Step 2
Product
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Answer
The concentration of product (Y) increases as the reaction proceeds.
Step 3
Rate of reaction
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Answer
Initially, the rate of reaction is high and decreases over time as the substrate is consumed, reaching a plateau.
Step 4
Identify the correct line
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Answer
Based on the observations, the correct identification for this reaction is represented by line D in the table: Substrate (Y), Product (X), Rate of reaction (decreasing).
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