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The diagram shows an enzyme and its substrate - Scottish Highers Human Biology - Question 7 - 2022
Question 7
The diagram shows an enzyme and its substrate. Which row in the table identifies the sites where a competitive and a non-competitive inhibitor could bind? Competit... show full transcript
Worked Solution & Example Answer:The diagram shows an enzyme and its substrate - Scottish Highers Human Biology - Question 7 - 2022
Step 1
Which row in the table identifies the sites where a competitive and a non-competitive inhibitor could bind?
Answer
In this scenario, the competitive inhibitor binds to the active site of the enzyme, which is represented by site Y in the diagram. This prevents the substrate from binding. The non-competitive inhibitor, however, can bind to a different site on the enzyme, which is site X. Therefore, the correct answer is:
Row D: Competitive inhibitor binds at site Y and non-competitive inhibitor binds at site X.